CN1864359B - Methods for seamless delivery of broadcast and multicast content across cell borders and/or between different transmission schemes and related apparatus - Google Patents

Methods for seamless delivery of broadcast and multicast content across cell borders and/or between different transmission schemes and related apparatus Download PDF

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CN1864359B
CN1864359B CN 200480028692 CN200480028692A CN1864359B CN 1864359 B CN1864359 B CN 1864359B CN 200480028692 CN200480028692 CN 200480028692 CN 200480028692 A CN200480028692 A CN 200480028692A CN 1864359 B CN1864359 B CN 1864359B
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block
transmission
information
point
data
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CN 200480028692
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CN1864359A (en
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A·H·瓦亚诺斯
F·格里利
L·卡萨恰
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高通股份有限公司
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Priority to US10/922,405 priority
Priority to US10/922,405 priority patent/US8804761B2/en
Application filed by 高通股份有限公司 filed Critical 高通股份有限公司
Priority to PCT/US2004/027222 priority patent/WO2005022813A1/en
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Abstract

Transmission techniques are provided that improve service continuity and reduce interruptions in delivery of content that can be caused by transitions that occur when the User Equipment (UE) moves from one cell to the other, or when the delivery of content changes from a Point-to-Point (PTP) connection to a Point-to-Multipoint (PTM) connection in the same serving cell, and vice-versa. Such transmission techniques enable seamless delivery of content across cell borders and/or between different transmission schemes such as Point-to-Multipoint (PTM) and Point-to-Point (PTP). Mechanisms for adjusting different streams and for recovering content from each data block during such transitions are also provided so that data is not lost during a transition. In addition, mechanisms for realigning data during decoding at a receiving terminal are also provided.

Description

用于广播和组播内容跨小区边界和/或不同传送方案之间的无缝传送的方法和相关装置 A method for broadcast and multicast content across a seamless transfer between the boundary and / or a different cell transmission scheme and related apparatus

[0001] 按照;35 USC § 119要求的优先权 [0001] in accordance with; Priority 35 USC § 119 requirements

[0002]本申请要求 2003 年8 月21 日提交的名为“Method and Apparatus forSeamless Delivery of Broadcast and Multicast Content Across Cell Bordersand/or Between Different Transmission Schemes”的60/497,457 号临时申请和2003 年8 月21 日提交的名为“L2 Design for Outer Coding Scheme”的60/497,456号临时申请的优先权,它们二者可被转让给其受让人,从而可将其明确引用在此作为参考。 [0002] This application claims priority entitled "Method and Apparatus forSeamless Delivery of Broadcast and Multicast Content Across Cell Bordersand / or Between Different Transmission Schemes" August 21, 2003, filed 60 / Provisional Application No. 497,457 and August 2003 Serial No. 60 / 497,456 provisional application entitled "L2 Design for Outer Coding Scheme" of may 21 filed, both of which can be assigned to the assignee, so it can be expressly incorporated herein by reference .

技术领域 FIELD

[0003] 本发明主要涉及通信系统,并更具体地涉及广播和组播内容的传送。 [0003] The present invention relates to communication systems, and more particularly, to a broadcast and multicast transmission content. 背景技术 Background technique

[0004] 无线通信系统已被传统地用于传送语音业务和低数据速率的非语音业务。 [0004] Wireless communication systems have traditionally been used to transmit voice traffic and low data rate non-voice traffic. 现在, 也传送诸如视频、数据的高数据速率(HDR)多媒体业务和其它类型的业务的无线通信系统正被实现。 Now, such as video transmission services, high data rate data (HDR) multimedia services and other types of wireless communication systems are being implemented. 多媒体广播和组播服务(MBMS)信道可用于传送基于语音、音频和视频数据源的流应用,诸如无线广播、电视广播、电影和其它类型的音频或视频内容。 Multimedia Broadcast and Multicast Service (MBMS) channels are available for transmitting streaming applications based on voice, audio and video data sources, radio, television broadcasts, movies, and other types of content, such as audio or video. 流数据源能容忍延迟和一定量的损耗或比特误差,因为这些流数据源有时是间歇性的,并且典型地是压缩的。 Source data stream can tolerate delay and an amount of the loss or bit errors, since the data streams are sometimes intermittent sources, and are typically compressed. 就这一点而言,到达无线接入网(RAN)的传送数据速率可能是非常易变的。 In this regard, reaching the radio access network (RAN) data transfer rate can be very variable. 由于应用层缓冲区典型地是有限的,所以需要支持可变源数据速率的MBMS传输机制。 Since the application layer buffer is typically limited, it is necessary to support MBMS transmission mechanisms of the variable rate data source.

[0005] 典型地,基站通过发射通常可被组织成多个分组的信息信号,把这种多媒体业务服务提供给用户站。 [0005] Typically, the base station can be generally organized into a plurality of packets of information signals through the transmission, the multimedia service which provides services to the user station. 分组可以是包括数据(净荷)和控制元素的一组排列成特定格式的字节。 Packet may be arranged in a specific format set includes data (payload) and control elements byte. 控制元素可包括例如前同步码(preamble)和质量度量,质量度量可包括循环冗余校验(CRC)、奇偶校验位和其它类型的度量。 The control element may comprise, for example, a preamble (Preamble) and quality metrics, the quality metrics may include Cyclic Redundancy Check (the CRC), parity and other types of metrics. 分组通常根据通信信道结构,被格式化成消息。 The communication channel is typically a packet structure, is formatted into messages. 消息在起始终端和目的终端之间传播,并会受通信信道特性的影响,诸如受到信号噪声比、衰落、时变和其它这样的特性的影响。 Messages between the terminal and the destination terminal starting communication, and will be affected by channel characteristics of the communications channel, such as by the signal to noise ratio, fading, and other such variations affect the characteristics when. 在不同的通信信道中,这些特性能不同地影响调制信号。 In various communication channels, these characteristics can affect the modulated signal differently. 其中的一条是,调制信息信号在无线通信信道上的传输,需要选择适当的方法来保护调制信号中的信息。 Wherein one is, in a modulated information signal transmitting wireless communication channel, it is necessary to select the appropriate method to protect the information in the modulated signal. 这些方法可包括例如编码、符号重复、交织和本领域的普通技术人员公知的其他方法。 These methods may include, for example, encoding, symbol repetition, interleaving, and other methods known to those of ordinary skill in the art. 然而,这些方法增加了开销。 However, these methods increase overhead. 因此,必须在消息传送的可靠性和开销量之间作出设计上折衷。 Therefore, a compromise must be made between the design and reliability of overhead messaging.

[0006] 典型地,操作者根据对接收MBMS内容感兴趣的用户站或用户设备(UE)的数目,逐小区地选择点对点(PTP)连接或点对多点(PTM)连接。 [0006] Typically, an operator according to the number of users interested in receiving the MBMS content station or user equipment (UE), the cell selected by point (PTP) connection or multipoint (PTM) connection.

[0007] 点对点(PTP)传输使用专用信道把服务发送给覆盖区域中的被选用户。 [0007] Point (PTP) transmission sends the user to the selected service coverage area using a dedicated channel. “专用”信道把信息传送给单个用户站或传送来自单个用户站的信息。 "Dedicated" channel to transmit information to a single subscriber station or transmitting information from a single subscriber station. 在点对点(PTP)传输中,独立信道可用于对每个移动台的传输。 Point to point (PTP) transmission, independent channels available for transmission for each mobile station. 在前向链路或下行链路方向上用于一个用户服务的专用用户业务,可通过例如称为专用业务信道(DTCH)的逻辑信道来传送。 On the forward link or downlink direction for a dedicated user traffic service user, may be transmitted by, for example, a logical channel called a dedicated traffic channel (DTCH) is. 例如,如果在覆盖区域中没有足够的需要特定多媒体广播和组播服务(MBMS)的用户,则点对点(PTP)通信服务典型地是最有效的。 For example, if the user does not require specific enough multimedia broadcast and multicast service (MBMS) in the coverage area, the point to point (PTP) communication services are typically most effective. 在基站仅把服务传送给已请求该服务的特定用户的这样的情况下,可使用点对点(PTP)传输。 In this case only the particular user station requesting the service has been transferred to the service using point to point (PTP) transmission. 例如,在WCDMA系统中,在有多于预定数目的移动台之前,使用专用信道或点对点(PTP)传输可以更有效。 For example, in a WCDMA system, there are more than before the predetermined number of mobile stations using a dedicated channel or point (PTP) transmission may be more effective.

[0008] “广播通信”或“点对多点(PTM)通信”,是通过公共通信信道到多个移动台的通信。 [0008] "Broadcast communications" or "point to multipoint (PTM) communication", via a common communication channel to a plurality of mobile communication stations. “公共”信道把信息传送给多个用户站或传送来自多个用户站的信息,并可由几个终端同时使用。 "Common" channel to transmit information to a plurality of subscriber stations or transmit information from a plurality of subscriber stations, can be used simultaneously by several terminals. 在点对多点(PTM)通信服务中,如果例如在基站的覆盖区域内,需要多媒体业务服务的用户的数目超过预定阈值数目,则蜂窝基站可在公共信道上广播该多媒体业务服务。 In point to multipoint (PTM) communication service, for example if within the coverage area of ​​the base station, the required number of users of multimedia services and services exceeds the predetermined threshold number, the base station may broadcast the multimedia services in a common channel service. 在CDMA 2000系统中,广播或点对多点(PTM)传输,典型地代替PTP传输来使用,因为PTM无线承载几乎和PTP无线承载一样有效。 In the CDMA 2000 system, broadcast or point to multipoint (PTM) transmission, instead of the PTP transmissions typically used, because almost PTP and PTM radio bearer radio bearer as effective. 来自特定基站的公共信道传输,可以不必要和来自其它基站的公共信道通信同步。 A common channel transmissions from a particular base station, a communication channel may be unnecessary and common synchronization channel from other base stations. 在典型的广播系统中,一个或多个中心站把内容提供给(用户的广播网)。 In a typical broadcast system, one or more central stations provided to the content (broadcast network users). 中心站可把信息传送给所有用户站或特定的一组用户站。 The central station can send a message to all subscriber stations or a specific set of user stations. 每个对广播服务感兴趣的用户站监视公共前向链路信号。 Each monitor the forward link signal to the user station before the public interest to broadcast services. 点对多点(PTM)传输可在下行链路或前向公共信道上发送。 Multipoint (PTM) transmission in the common channel can be transmitted to the downlink or forward. 典型地,公共广播前向链路信号在单向信道上广播,诸如在存在于前向链路或“下行链路”方向中的公共业务信道(CTCH)上广播。 Typically, before the common broadcast forward link signal in a unidirectional broadcast channel, such as broadcast on a forward link direction or the common traffic channel in "downlink" (the CTCH) prior to the present. 由于这个信道是单向的,所以用户站通常不与基站通信,因为允许所有用户单元反过来向基站通信,可能会使通信系统超载。 Since this channel is unidirectional, the user communicates with the base station is usually not, because all subscriber units in turn allows the base stations to the overload, the communication system may cause. 这样,在点对多点(PTM)通信服务的背景下,当在用户站接收的信息中有误码时,用户站可能不能反过来向基站通信。 Thus, in the context of the point to multipoint (PTM) communication service, when the subscriber station receives the information has error, the subscriber station may not communicate to the base station in turn. 因此,其它信息保护措施可以是合乎需要的。 Therefore, other information protection measures may be desirable.

[0009] 在CDMA 2000系统中,用户站能在点对多点(PTM)传输中软组合。 [0009] In the CDMA 2000 system, a subscriber station in soft combining can transmit the point to multipoint (PTM). 即使当采取了措施来保护信息信号时,通信信道的情况也可能会恶化,以致目的站不能解码通过专用信道传送的有些分组。 Even when taken steps to protect the information signal, the communication channel may deteriorate, so that some of the destination station can not decode the packet transmitted through a dedicated channel. 在这些情况下,一种方法可以是通过使用由目的(用户)站向起始(基站)站作出的自动重传请求(ARQ),来简单地重传不能解码的分组。 In these cases, a method may be automatic repeat request (ARQ) made to start (base) by the destination station by using the station (user), simply can not decode the retransmission packet. 重传有助于确保数据分组的传送。 Retransmission helps ensure that the transmission of data packets. 如果数据不能被正确传送,则传送端的RLC的用户可得到通知。 If the data can not be transmitted correctly, the RLC of the transmitting end notification available to the user.

[0010] 典型地,用户站会在许多情况下经历转换。 [0010] Typically, the subscriber station will undergo conversion in many cases. 这些转换可用不同的方式分类。 Classification of these transformations are available in different ways. 例如, 可把转换分为“交叉转换,,和“直接转换”。也可把转换分为“小区间,,转换和“小区内”转换。 For example, the conversion can be divided into "cross-conversion ,, and" direct conversion ". Can be converted into the" inter-cell conversion ,, and "the cell" conversion.

[0011] 小区或传送方案之间的转换,会导致用户可能不希望的服务中断。 Conversion between the [0011] or a cell transmission scheme, will lead the user may not want the service interruption. 当用户站或用户设备(UE)从一个小区移动到另一个时,或当在服务小区内多媒体广播和组播服务(MBMS)内容的传送从一种模式变成另一种模式时,可能会出现问题。 When a user station or user equipment (UE) moves from one cell to another, or when the serving cell transmitting the content of the Multimedia Broadcast and Multicast Service (MBMS) from one mode into another mode, may problem appear. 来自邻近小区的传输, 可能相对于彼此有量Atl的时移。 Transmissions from neighboring cells, they may have with respect to one another when the shift amount Atl. 而且,在转换期间可能会引入附加延迟,因为移动台需要确定目标小区中的系统信息,这需要一定量的处理时间Δΐ2。 Furthermore, during the conversion may introduce additional delays, since the mobile station needs to determine the system information in the target cell, which requires a certain amount of processing time Δΐ2. 自不同小区(或不同传输信道类型点对点(PTP)/点对多点(PTM))传送的数据流,相对于彼此可能是有偏移的。 Cells from different data streams (or different types of transmission channels Point (PTP) / multipoint (the PTM)) transmitted with respect to each other may have shifted. 因此,在自不同小区的点对多点(PTM)传输期间,移动台可能会接收到同一块内容两次,或者某些块内容可能会丢失。 Thus, during the cell from a different point to multipoint (PTM) transmission, the mobile station may receive a same content twice, or the content of some blocks may be lost. 这在服务质量方面是不尽如人意的。 This quality of service is not satisfactory. 小区之间和/或点对点(PTP) 传输和点对多点(PTM)传输之间的转换,取决于转换的持续时间以及传输之间的延迟或偏差,会导致服务中的中断。 Conversion between the transmission between cells and / or point to point (PTP) and point to multipoint transmission (the PTM), depending on the delay or offset between the converter and a transmission duration, will cause an interrupt service.

[0012] 因此,在本领域中需要能提供服务连续性和减少内容传送中的中断的传输技术, 其中内容传送中的中断可由在以下时刻发生的转换所导致:当用户设备(UE)从一个小区移动到另一个时,或当在同一服务小区中的内容传送从点对点(PTP)连接变成点对多点(PTM)连接时,以及当发生相反方向的转换时。 [0012] Accordingly, a need in the art to provide continuity of service and reduce transmission interruption content delivery technology, wherein the content transfer interrupt conversion may occur resulting in the following time: when the user equipment (UE) from a when moving to another cell, or when the content delivery in the same serving cell is connected from point to point (PTP) becomes the point to multipoint (PTM) connection, and when a transition occurs in the opposite direction. 这些传输技术将最好能实现跨小区边界的和/或诸如点对多点(PTM)和点对点(PTP)之间的不同传输方案之间的内容的无缝传送。 These transmission technologies will be able to seamlessly transfer content is preferably between different transmission schemes across the cell boundary between and / or as point to multipoint (PTM) and Point to Point (PTP) is. 用于在这些转换期间调整不同数据流和从每个数据块恢复内容的机制,也是期望的,以便数据在转换期间不会丢失。 Different data streams and for adjusting mechanism to resume content from each data block during the conversion, it is also desirable, so that data is not lost during the transition. 提供用于在接收终端的解码期间重新排列数据的机制,也将是期望的。 Provides a mechanism rearranges the data received during the decoding terminal, it will also be desirable.

附图说明 BRIEF DESCRIPTION

[0013] 图1是通信系统的图; [0013] FIG. 1 is a diagram of a communication system;

[0014] 图2是UMTS信令协议栈的框图; [0014] FIG. 2 is a block diagram of a UMTS signaling protocol stack;

[0015] 图3是UMTS协议栈的分组交换用户平面的框图; [0015] FIG. 3 is a block diagram of a packet switched UMTS user plane protocol stack;

[0016] 图4是UMTS信令协议栈的接入层部分的框图; [0016] FIG. 4 is a block diagram of the UMTS access stratum part of the signaling protocol stack;

[0017] 图5A是UMTS信令协议栈的无线链路控制(RLC)层中使用的数据传输模式和在每层中使用的各种信道的框图; [0017] FIG 5A is a block diagram of an UMTS signaling protocol stack layer used in data transmission mode and various channels used in each radio link control (the RLC);

[0018] 图5B是显示包括各种RLC数据传输模式的无线链路控制(RLC)层的结构的框图; [0018] FIG 5B is a block diagram showing a configuration of a data transmission mode includes various RLC radio link control (RLC) layer;

[0019] 图5C是显示用于实现无线链路控制(RLC)确认模式(AM)的实体的框图; [0019] FIG 5C is a block diagram for realizing radio link control entity (RLC) Acknowledged Mode (AM) is;

[0020] 图6是改进的具有前向纠错层的UMTS协议栈的框图; [0020] FIG. 6 is a block diagram of an improved forward error correction with the UMTS protocol stack layer;

[0021] 图7A显示了包括前向纠错(FEC)层的接入层的协议结构的实施例; [0021] FIG 7A shows an embodiment of a protocol structure includes a forward error correction (FEC) access layer layer;

[0022] 图7B显示了包括前向纠错(FEC)层的接入层的协议结构的另一实施例; [0022] Figure 7B shows another protocol structure includes a forward error correction (FEC) layer of the access layer embodiment;

[0023] 图8是信息块和与该信息块相对应的外部代码块的框图; [0023] FIG. 8 is a block diagram of an information block and the block corresponding to the outer block;

[0024] 图9A是显示可应用到多媒体广播和组播服务(MBMQ数据中的外部代码块结构的框图; [0024] FIG. 9A is a block diagram can be applied to the (external code block data structure MBMQ multimedia broadcast and multicast service;

[0025] 图9B是显示图9A的外部代码块结构的框图,其中每传输时间间隔(TTI)发送多行; [0025] FIG. 9B is a block diagram of the structure of the outer block display of FIG. 9A, wherein each transmission time interval (TTI) transmitting a plurality of rows;

[0026] 图9C是显示图9A的外部代码块结构的框图,其中每行在多个TTI中被发送; [0026] FIG. 9C is a block diagram of the structure of the outer block display of FIG. 9A, in which each row is transmitted in a plurality of TTI;

[0027] 图IOA和IOB是显示由前向纠错层生成的外部代码块的框图; [0027] FIGS. IOA and IOB is a block diagram of the outer block error correction generated by the front layer of the display;

[0028] 图11是RLC UM+实体中使用的前向纠错(FEC)层的实施例; [0028] FIG. 11 is a RLC UM + entity used in Example forward error correction (FEC) layer;

[0029] 图12A显示了用于从数据单元生成外部代码块的编码处理,其中外部代码块的行大小是固定的; [0029] FIG. 12A shows the encoding process for generating outer code block unit from data in which the size of the outer block row is fixed;

[0030] 图12B显示了在图12A中通过空中发射信息的实例; [0030] FIG 12B shows an example of transmitting information over the air in FIG. 12A;

[0031] 图13显示了用于生成具有可变行大小的外部代码块的编码处理; [0031] Figure 13 shows a coding process for generating outer code block having a row size of the variable;

[0032] 图14是前向纠错(FEC)头格式的实施例的图; [0032] FIG. 14 is a diagram of an embodiment of a forward error correction (FEC) header format;

[0033] 图15是用于使移动台能把解码延迟不同逻辑流之间的时间偏移的算法; [0033] FIG. 15 is a mobile station can decode algorithm delay between different logical flow time offset;

[0034] 图16是显示当移动台在接收自小区A的点对多点(PTM)传输和自小区B的另一点对多点(PTM)传输之间转换时,由移动台接收的外部代码块之间的时间关系的图; [0034] FIG. 16 is a mobile station when the external code at the transition between the cell A is received from the point- to-multipoint (PTM) transmission and (PTM) transmission from the other point to multipoint cell B, received by the mobile station FIG temporal relationship between blocks;

[0035] 图17是显示在点对多点(PTM)传输和点对点(PTP)传输之间的转换发生时,由移动台接收的外部代码块之间的时间关系的图; [0035] FIG. 17 is a diagram showing a relationship between the external time code block conversion between transmission occurs, received by the mobile station in a point to multipoint (PTM) transmission and point to point (PTP) display;

[0036] 图18是显示在自无线网络控制器(RNC)A的点对点(PTP)传输和自无线网络控制器(RNC)B的另一点对点(PTP)传输之间的转换或重新定位期间,由移动台接收的外部代码块之间的时间关系的图。 [0036] FIG. 18 is a display during a transition between the transmission and point to point transmission from another radio network controller (RNC) B is (PTP) point to point (PTP) from a radio network controller (RNC) A or repositioned, FIG relationship between the external time code blocks received by the mobile station. 具体实施方式 Detailed ways

[0037] 词“示意性的”在本文中用来指“用作例子、实例或例证”。 [0037] The word "exemplary" is used herein to mean "serving as an example, instance, or illustration." 在本文中作为“示意性的”描述的任何实施例,不一定解释为优选实施例或比其它实施例有利。 In any embodiment described herein as "exemplary" described embodiments necessarily to be construed as preferred or advantageous over other embodiments embodiments.

[0038] 术语“移动台”在本文中可与术语“目的站”、“用户站”、“用户单元”、“终端”和“用户设备(UE) ”互换使用,并在本文中用来指硬件,诸如基站,该基站与诸如UMTS陆地无线接入网(UTRAN)的接入网通信。 [0038] The term "mobile station" with the term "destination", "subscriber stations", "subscriber unit", "terminal" and "user equipment (the UE)" are used interchangeably herein, and is used herein to refer to hardware, such as a base station such as a terrestrial radio access network (UTRAN) access network of UMTS. 在UMTS系统中,用户设备(UE)是允许用户接入UMTS网络服务的装置,并且还最好包括包含所有用户预定信息的USIM。 In the UMTS system, user equipment (UE) that allows a user access to UMTS network device, and further preferably comprising the predetermined information contains all users USIM. 移动台可以是移动的或静止的,并通常可包括通过无线信道或通过例如使用光纤或同轴电缆的有线信道进行通信的任何通信装置、数据装置或终端。 The mobile station may be mobile or stationary, and may generally comprise any communication device through a wireless channel or through communication, for example using fiber optic or coaxial cables wired channel, data device or terminal. 移动台可实现在这样的装置中,该装置包括PC卡、紧凑式闪存、外部或内部调制解调器或者无线或有线电话,但所包括的部件不于这些部件。 The mobile station may be implemented in such a device, the apparatus comprising a PC card, compact flash, external or internal modem, or wireless or wireline phone, but the components are not included in these members.

[0039] 术语“连接建立状态”指的是这样的状态,移动台处于建立与基站的活动业务信道连接的处理中。 [0039] The term "connection setup state" refers to a state where the mobile station is in the process of establishing an active traffic channel connection with a base station in.

[0040] 术语“业务状态”指的是这样的状态,移动台具有已建立的与基站的活动业务信道连接。 [0040] The term "operational state" refers to a state where the mobile station has established an active traffic channel connection with a base station.

[0041] 术语“通信信道”在本文中根据上下文,用来指物理信道或逻辑信道。 [0041] The term "communication channel" in the context herein, refer to a physical channel or a logical channel.

[0042] 术语“物理信道”在本文中用来指通过空中接口传送用户数据或控制信息的信道。 [0042] The term "physical channel" is used to refer to the air interface transmitting the user data or control channel information herein. 物理信道是提供无线平台的“传输介质”,信息实际上通过该无线平台被传输,物理信道用于通过无线链路传送信令和用户数据。 Physical channel is a wireless platform "transmission medium", information is actually transmitted through the wireless internet, a physical channel for transmitting signaling and user data over the radio link. 典型地,物理信道包括扰频码和信道化码的组合。 Typically, the composition comprises a physical channel scrambling code and channelization code. 在上行链路方向上,还可包括相对相位。 In the uplink direction, relative phase may further comprise. 基于移动台正试图作的事情,可在上行链路上使用许多不同的物理信道。 Based on what the mobile station is trying to make, and can be used many different physical channels on the uplink. 在UMTS系统中,术语物理信道还可以指为了不同的目的通过Uu接口分配的不同种类的带宽。 In a UMTS system, the term may also refer to a physical channel for different purposes by different kinds of bandwidth assigned to the interface Uu. 物理信道构成用户设备(UE)域和网络接入域之间的Uu接口的物理存在。 Physical channel configuration a user equipment (UE) Uu physical interface between the domain and the access domain network exists. 物理信道可通过用于通过空中接口传送数据的物理映射和属性来定义。 Physical channels may be defined by a mapping and physical attributes of the data transmitted over the air interface.

[0043] 术语“传输信道”在本文中用来指,用于对等物理层实体之间的数据传输的通信路由。 [0043] The term "transmission channel" used herein means a communication route for data transport between peer physical layer entities. 传输信道涉及信息被传送的方式。 Embodiment relates to a transmission channel the transmitted information. 通常,可以有称为公共传输信道和专用传输信道的两种类型的传输信道。 Generally, there are two types of transport channels known as the common transport channel and a dedicated transport channel. 传输信道可由怎样能通过物理层上的空中接口传送特性数据或能通过物理层上的空中接口传送什么样的特性数据来定义,例如是否使用专用或公共物理信道,或逻辑信道的复用。 How to transport channel characteristics may be transmitted through the air interface on the physical layer or data through what characteristics data transmitted over the air interface physical layer is defined, for example, whether using dedicated or common physical channels, or multiplexing of logical channels. 传输信道可用作物理层的服务接入点(SAP)。 Transmission channels can be used as a physical layer service access point (SAP). 在UMTS系统中,传输信道描述怎样能传送逻辑信道,并把这些信息流映射到物理信道。 In the UMTS system, describes how a transmission channel capable of transmitting a logical channel, and the flow of information mapped to the physical channel. 传输信道可用于在媒体接入控制(MAC)层和物理层(Li)之间传送信令和用户数据。 Transmission channels can be used in a media access control (MAC) signaling and user data between a transmitting layer and a physical layer (Li). 无线网络控制器(RNC)查看传输信道。 A radio network controller (RNC) the transmission channel to view. 信息通过可被映射到物理信道的许多传输信道中的任何一个,从MAC层传到物理层。 Any of a number of information transmission channels may be mapped to a physical channel, transmitted to the physical layer from the MAC layer.

[0044] 术语“逻辑信道”在本文中用来指专门用于特定类型的信息或无线接口传送的信息流。 [0044] The term "logical channel" is used herein to refer to the information stream dedicated to a wireless interface or a particular type of transmission. 逻辑信道涉及正被传送的信息。 Involving logical information is being transmitted. 可通过被传送的信息是什么类型来定义逻辑信道, 例如可由信令或用户数据来定义,并可将其理解为网络和终端在不同时间点应该执行的不同任务。 Can be transmitted through information to define what type of a logical channel, for example, be defined by signaling or user data, it may be understood as different tasks the network and terminal should perform at different point in time. 可把逻辑信道映射到执行移动台域和接入域之间的实际信息传送的传输信道中。 The logical channels can be mapped to transport channels performing actual information transfer between the mobile station domain and the access domain. 信息经由逻辑信道来传送,逻辑信道可通过能被映射到物理信道的传输信道而被映射。 Information is transmitted via a logical channel, the logical channel may be mapped through transport channels can be mapped to a physical channel.

[0045] 术语“专用信道”在本文中用来指典型地专门用于特定用户或为特定用户保留的、 并把信息传送到特定移动台、用户单元或用户装置或者传送来自特定移动台、用户单元或用户装置的信息的信道。 [0045] The term "dedicated channel" is used herein to refer to a particular user is typically dedicated to, or reserved for a particular user, and transmits the information to a specific mobile station, subscriber unit or a user device, or transmitted from the particular mobile station, the user channel information unit or a user device. 典型地,专用信道传送打算发往给定用户使用的信息,该信息包括用于实际服务的数据以及较高层控制信息。 Typically, a dedicated channel transmission information intended to be sent to a given user, the information including data for the actual service and higher layer control information. 专用信道可由一定频率上的一定代码识别。 It must be a dedicated channel on a certain frequency identification codes. 专用信道可以是双向的,以潜在地便于反馈。 Dedicated channel may be bidirectional, to potentially facilitate feedback.

[0046] 术语“公共信道”在本文中用来指把信息传送给多个移动台或传送来自多个移动台的信息的传输信道。 [0046] The term "common channel" is used to refer to a transport channel to a plurality of mobile stations transmit information or transmitting information from a plurality of mobile stations herein. 在公共信道中,信息可在所有移动台中共享。 In common channel, information can be shared among all mobile stations. 可在所有用户之间或在一个小区中的一组用户之间划分公共信道。 Common channel can be divided between all users in one cell or a group of users.

[0047] 术语“点对点(PTP)通信”在本文中用来指通过专用物理通信信道传送到单个移动台的通信。 [0047] The term "point to point (PTP) communication" is used herein to refer to a single mobile station to the communication through a dedicated physical communication channel.

[0048] 术语“广播通信”或“点对多点(PTM)通信”在本文中可用来指通过公共通信信道到多个移动台的通信。 [0048] The term "broadcast communication" or "point to multipoint (PTM) communication" herein used to refer to a plurality of mobile stations communicate through a common communication channel.

[0049] 术语“反向链路或上行链路信道”在本文中用来指通信信道/链路,通过该通信信道/链路,移动台在无线接入网中把信号发送给基站。 [0049] The term "reverse link or uplink channel" is used herein to mean a communication channel / link, link, the mobile station transmits to the base station via the communication channel / in signal to the radio access network. 这个信道也可用于把自移动台的信号传送给移动基站,或把自移动基站的信号传送给基站。 This channel may also be used to transmit a signal from the mobile station to the mobile station, or a mobile base station transmits signals from the base station.

[0050] 术语“前向链路或下行链路信道”在本文中用来指通信信道/链路,通过该通信信道/链路,无线接入网把信号发送给移动台。 [0050] The term "forward link or downlink channel" is used herein to mean a communication channel / link through which a communication channel / link, the radio access network sends a signal to the mobile station.

[0051] 术语“传输时间间隔(TTI) ”在本文中用来指数据多长时间从较高层到达物理层一次。 [0051] The term "transmission time interval (the TTI)" is used herein to refer to how long the data reaches the physical layer from a higher layer. 传输时间间隔(TTI)可指传送块集(TBQ到达的间隔时间,并近似等于TBS由无线接口上的物理层传送的周期。在TTI期间在传输信道上传送的数据,可被编码和交织在一起。 TTI可持续多个无线帧,并可以是最小交织周期的多倍。可为单个连接复用在一起的不同传输信道的TTI的起始位置,是时间对准的。TTI具有公共起始点。媒体接入控制每TTI,就把一个传送块集传输到物理层。映射在同一物理信道上的不同传输信道,可具有不同的传输时间间隔(TTI)持续时间。可在一个TTI中传送多个PDU。 Transmission time interval (TTI) may refer to a set of transport blocks (TBQ arrival interval, and a period approximately equal to TBS transmission on the physical layer of the radio interface. In the data transfer during a TTI transmission channel may be encoded and interleaved together. sustainable TTI plurality of radio frames, and may be a multiple of the minimum interleaving period may be a starting position for a single connection multiplexed together different TTI transport channel is time aligned with a common starting point .TTI the media access control for each TTI, to put a transport block set to the physical transmission layer different transport channels mapped to the same physical channel, may have a different transmission time interval (TTI) duration may be transmitted in one TTI multiple a PDU.

[0052] 术语“分组”在本文中用来指包括数据或净荷以及控制元素的一组排列成特定格式的比特。 [0052] The term "packet" is used herein to refer to or include a data payload and a set of control bits elements arranged in a particular format. 控制元素可包括例如前同步码、质量度量和本领域的技术人员所公知的其它控制元素。 Control elements may include other elements such as control preamble, a quality metric skilled in the art and well known. 质量度量包括,例如循环冗余校验(CRC)、奇偶校验位和本领域的技术人员所公知的其它质量度量。 Quality metric comprises, e.g. a cyclic redundancy check (the CRC), a parity bit and one skilled in the art that other quality metrics known.

[0053] 术语“接入网”在本文中用来指用于接入网络所必要的设备。 [0053] The term "access network" is used herein to refer to a network access equipment necessary. 接入网可包括基站(BS)和一个或多个基站控制器(BSC)的集合或网络。 The access network may include a base station (BS) and one or more base station controllers (BSC) or a collection of network. 接入网在多个用户站之间传送数据分组。 Access network transmits data packets between multiple subscriber stations. 接入网可进一步连接到接入网以外的另外的网络,诸如企业内部网络或因特网,并可在接入终端和这种外部网络之间传送数据分组。 The access network may be further connected to additional networks outside the access network, such as an internal corporate network or the Internet, and can access the data transmission between the terminal and such outside networks packet. 在UMTS系统中,可把接入网称为UMTS陆地无线接入网(UTRAN)。 In a UMTS system, the access network may be referred to as a UMTS Terrestrial Radio Access Network (UTRAN).

[0054] 术语“核心网”在本文中用来指用于为电路交换(CS)域中的电路交换呼叫而连接到公共交换电话网络(PSTN),或为分组交换(PQ域中的分组交换呼叫而连接到分组数据网络(PSDN)的交换和路由选择能力。术语“核心网”也指用于移动性和用户位置管理和用于认证服务的路由选择能力。核心网包括为交换和用户控制所需要的网元。 [0054] The term "core network" is used herein to refer to a circuit switched (CS) call in the circuit switched domain is connected to the public switched telephone network (PSTN), packet switched or packet-switched (PQ domain the call is connected to a packet data network (the PSDN) switching and routing capabilities. the term "core network" also refers to the user mobility and location management and routing capabilities for authentication services. the core network comprises a user control for the switching and the required network elements.

[0055] 术语“基站”在本文中用来指“起始站”,该“起始站”包括移动台与之通信的硬件。 [0055] The term "base station" is used herein to mean "starting station", the "initiator station" includes a mobile station with which communication hardware. 在UMTS系统中,术语“节点B”可与术语“基站”互换使用。 In a UMTS system, the term "Node B" may be used interchangeably with the term "base station" are used interchangeably. 基站可以是固定的或移动的。 The base station may be fixed or mobile.

[0056] 术语“小区”在本文中取决于使用该术语的上下文,用来指硬件或地理覆盖区域。 [0056] The term "cell" depending on the context in which the term is used herein, to refer to hardware or a geographic coverage area.

[0057] 术语“服务数据单元(SDU) ”在本文中用来指,与位于所感兴趣协议上方的协议交换的数据单元。 [0057] The term "service data units (SDUs)" is used herein to refer to the data unit of interest located above the protocol exchange protocol. [0058] 术语“净荷数据单元(PDU) ”在本文中用来指,与位于所感兴趣协议下方的协议交换的数据单元。 [0058] The term "payload data units (PDUs)" is used herein to refer to the data unit of interest located below the protocol exchange protocol. 如果所感兴趣协议的标识不明确,则将在名称中明确地提及。 If you are interested in the identity of the agreement is not clear, it will be explicitly mentioned in the name. 例如,FEC-PDU 是FEC层的PDU。 For example, FEC-PDU is a PDU FEC layer.

[0059] 术语“软越区切换”在本文中用来指用户站和两个或更多扇区之间的通信,其中每个扇区属于不同的小区。 [0059] The term "soft handoff" is used herein to mean a communication between a subscriber station and two or more sectors, wherein each sector belongs to a different cell. 反向链路通信可由两个扇区接收,并且前向链路通信可同时在两个或更多扇区的前向链路上传输。 Reverse link communication received by both sectors, and may be transmitted simultaneously on the forward link communication link prior to the two or more sectors.

[0060] 术语“更软越区切换”在本文中用来指用户站和两个或更多扇区之间的通信,其中每个扇区属于相同的小区。 [0060] The term "softer handoff" is used herein to mean a communication between a subscriber station and two or more sectors, wherein each sector belongs to the same cell. 反向链路通信可由两个扇区接收,并且前向链路通信可同时在两个或更多扇区的前向链路中的一个上传输。 Reverse link communication received by both sectors, can transmit onto link and a forward link communication before the two or more sectors.

[0061] 术语“删除”在本文中用来指不能识别消息,也可用来指在解码时可丢失的比特集。 [0061] The term "delete" is used herein to identify the message that can not also be used to refer to a set of bits when the decoding may be lost.

[0062] 术语“交叉转换”可定义为,从点对点(PTP)传输到点对多点(PTM)传输的转换,或相反方向的转换。 [0062] The term "cross-conversion" is defined as the transmission from point to point (PTP) to multipoint (PTM) transmissions Conversion Conversion, or in the opposite direction. 四种可能的交叉转换是:从小区A中的点对点(PTP)传输到小区B中的点对多点(PTM)传输的转换,从小区A中的点对多点(PTM)传输到小区B中的点对点(PTP) 传输的转换,从小区A中的点对点(PTP)传输到小区A中的点对多点(PTM)传输的转换,从小区A中的点对多点(PTM)传输到小区A中的点对点(PTP)传输的转换。 Four possible cross-conversion is: A cell is transferred from the point (PTP) to cell B-multipoint (PTM) transmissions conversion transmitted from the cell A multipoint (PTM) to B cells the point to point (PTP) transmission of the conversion, (PTP) transmission from the cell a to cell a point-to-multipoint (PTM) transmissions conversion transmitted from the cell a multipoint (PTM) to a cell in the point (PTP) transmission conversion.

[0063] 术语“直接转换”可定义为,从一个点对点传输到另一个点对点传输的转换和从点对多点传送到点对多点传输的转换。 [0063] The term "direct conversion" is defined as, from one point to another point transmission to transmit the converted and transmitted from the point-to-multipoint transmission of the conversion. 两种可能的直接转换是,从小区A中的点对点(PTP) 到小区B中的点对点(PTP)传输的转换和从小区A中的点对多点(PTM)到小区B中的点对多点(PTM)传输的转换。 Two possible direct conversion is that the point A in the cell from point to point (PTP) to cell B point (PTP) transmission and conversion from a cell A multipoint (PTM) to the multi-cell B point (PTM) transmissions conversion.

[0064] 术语“小区间转换”用来指跨小区边界的转换。 [0064] The term "inter-cell switch" is used to convert across cell boundaries. 四种可能的小区间转换是:从小区A中的点对点(PTP)传输到小区B中的点对点(PTP)传输的转换,从小区A中的点对多点(PTM)传输到小区B中的点对多点(PTM)传输的转换,从小区A中的点对点(PTP)传输到小区B中的点对多点(PTM)传输的转换,和从小区A中的点对多点(PTM)传送到小区B中的点对点(PTP)传输的转换。 Four kinds of conversion are possible inter-cell: A cell is transferred from the point (PTP) to cell B point (PTP) transmission of the converted transmitted from the cell A multipoint (PTM) to the cell B multipoint (PTM) transmission conversion, (the PTP) transmission from the cell a to the point B is converted multipoint cell (PTM) transmission, and point to multipoint (PTM) from cell a transmitted to the B cell conversion point (PTP) transmissions. 通常,最频繁的转换是跨小区边界的点对多点(PTM)传输到点对多点(PTM)传输的转换。 Typically, the most frequent transition across a cell boundary multipoint (PTM) is transmitted to the conversion-to-multipoint (PTM) transmission.

[0065] 术语“小区内转换”用来指小区内的从一种模式到另一种模式的转换。 [0065] The term "inner cell switch" is used to switch from one mode to another mode within the cell. 两种可能的小区内转换是:从小区A中的点对点(PTP)传输到小区A中的点对多点(PTM)传输的转换,和从小区A中的点对多点(PTM)传输到小区A中的点对点(PTP)传输的转换。 Two possible within the cell is converted: A cell is transferred from the point (PTP) conversion cell A multipoint (PTM) transmission from the cell A and the point to multipoint (PTM) transmission to a cell in the point (PTP) transmission conversion.

[0066] 术语“无线承载”用来指,由用于用户设备(UE)和UMTS陆地无线接入网(UTRAN) 之间的用户数据传送的层2所提供的服务。 [0066] The term "radio bearer" is used to refer to the services provided between the data transmitted by the user for a user equipment (UE) and the UMTS Terrestrial Radio Access Network (UTRAN) layer 2.

[0067] 现在将讨论本发明的实施例,在这些实施例中上面讨论的方面被实现在WCDMA或UMTS通信系统中。 [0067] Example embodiments will now be discussed the present invention, in the above-discussed aspects of these embodiments is implemented in a WCDMA or UMTS communication system. 图1-5C说明了传统UMTS或WCDMA系统的一些方面,其中在本文中描述的可应用在这个描述中的本发明的方面,仅为了说明和限制的目的而被提供。 FIG 1-5C illustrate some aspects of a conventional UMTS or WCDMA system, wherein the herein described may be applied in this description of the present invention has been described only for purposes of limitation and to be provided. 应理解的是, 本发明的方面也可应用在既传送语音又传送数据的其它系统中,诸如符合以下标准的GSM 系统和CDMA 2000 系统:体现在包括3G TS25. 21U3G TS 25. 212、3G TS 25. 213 和3G TS 25.214(W-CDMAB标准)号文件的一组文件中的“第三代合作伙伴计划”(3GPP),或“用于cdma2000扩频系统的TR-45. 5物理层标准”(IS-2000标准)以及诸如TS 04. 08 (移动无线接口层3规范)、TS 05. 08(无线子系统链路控制)和TS 05.01(无线路径上的物理层(总体描述))的GSM规范。 It should be understood that aspects of the present invention can also be applied in other systems transmit both voice and data transfer, such as the GSM system meet the following criteria and the CDMA 2000 system: including embodied in 3G TS25 21U3G TS 25. 212,3G TS. TR-45. 5 physical layer standard set of files 25.213 and 3G TS 25.214 (W-CDMAB standard) in the document "third Generation partnership Project" (3GPP), or "for cdma2000 spread Spectrum systems "(iS-2000 standard), as well as TS 04. 08 (mobile radio interface layer 3 specification), TS 05. 08 (radio subsystem link control) and TS 05.01 (physical layer on the radio path (general description)) of GSM specifications.

[0068] 例如,尽管描述指明,无线接入网20可通过使用通用陆地无线接入网(UTRAN)空中接口来实现,但是可选地,在GSM/GPRS系统中,接入网20可以是GSM/EDGE无线接入网(GERAN),或在系统间的情况下它可包括UTRAN空中接口的小区和GSM/EDGE空中接口的小区。 [0068] For example, although the description indicates, the radio access network 20 may be implemented using a universal terrestrial radio access network (UTRAN) air interface, but alternatively, in the GSM / GPRS system, access network 20 may be a GSM / EDGE radio access network (GERAN), or in the case of a system which may comprise between a cell UTRAN air interface and GSM / EDGE air interface cell.

[0069] UMTS网络布局 [0069] UMTS network layout

[0070] 图1是根据UMTS网络布局的通信系统的框图。 [0070] FIG. 1 is a block diagram of a UMTS network communication system in accordance with the layout. UMTS系统包括用户设备(UE) 10、 接入网20和核心网30。 UMTS system includes a user equipment (UE) 10, the access network 20 and core network 30. UE 10连接到接入网,接入网连接到核心网30,核心网30可连接到外部网络。 UE 10 is connected to the access network, the access network to the core network 30, a core network 30 may be connected to an external network.

[0071] UE 10包括移动式设备12和包含用户预定信息的通用用户识别模块(USIM) 14。 [0071] UE 10 includes a mobile device 12 and Universal Subscriber Identity Module (USIM) 14 comprising a predetermined user information. (未示出的)Cu接口是USIM 14和移动式设备12之间的电接口。 (Not shown) Cu USIM 14 and the interface is an electrical interface between the mobile equipment 12. UE 10通常是允许用户接入UMTS网络服务的装置。 UE 10 typically allows a user to access UMTS network device. UElO可以是诸如蜂窝电话的移动式装置,固定站,或其它数据终端。 UElO may be a mobile device such as a cellular telephone, a fixed station, or other data terminals. 移动式设备可以是例如用于通过空中接口(Uu)进行无线通信的无线终端。 For example, the mobile device may be a wireless radio communication terminal over the air interface (Uu). Uu接口是这样的接口,UE通过该接口接入系统的固定部分。 Uu interface is an interface, UE through the access interface to the fixed part of the system. USIM通常是安装在“智能卡”或其它包括微处理器的逻辑卡上的应用程序。 USIM application is typically installed on a logic card "smart card" or other comprises a microprocessor. 智能卡保存用户识别码,执行认证算法,并把认证存储在终端需要的加密密钥和用户信息中。 Save the smart card user identification code, performs authentication algorithms, authentication is required and the encryption key stored in the terminal and user information.

[0072] 接入网20包括用于接入网络的无线设备。 [0072] The access network 20 comprises a wireless device for accessing a network. 在WCDMA系统中,接入网20是通用陆地无线接入网(UTRAN)空中接口。 In a WCDMA system, the access network 20 is the Universal Terrestrial Radio Access Network (UTRAN) air interface. UTRAN包括至少一个无线网络子系统(RNS),该无线网络子系统包括连接到至少一个无线网络控制器(RNC)24的至少一个基站或“节点B”22。 UTRAN includes at least one radio network subsystem (RNS), which is connected to a radio network subsystem comprises at least one radio network controller (RNC) at least one base station 24 or "Node B" 22.

[0073] RNC控制UTRAN的无线资源。 [0073] RNC controls radio resources of UTRAN. 接入网20的RNC M通过Iu接口与核心网30通信。 Access network 20 via a communication RNC M Iu interface with the core network 30. Uu接口、Iu接口25、Iub接口和Iur接口,允许来自不同厂家的设备之间的网际互连,并在3GPP标准中被详细说明。 Uu interface, the Iu interfaces 25, Iub interface and the Iur interface, allowing Internet interconnection between devices from different manufacturers, and are described in detail in the 3GPP standard. 无线网络控制器(RNC)的实现随厂家的不同而变化,因此下面将以通用术语来描述。 Implement a radio network controller (RNC) varies with different manufacturers, so the following will be described in general terms.

[0074] 无线网络控制器(RNC) 24用作UMTS陆地无线接入网(UTRAN)的交换和控制元素, 并位于Iub接口和Iu接口25之间。 [0074] Radio Network Controller (RNC) 24 is used as a UMTS Terrestrial Radio Access Network (UTRAN) and a control switching element, and is located between the Iu interface and the Iub interface 25. RNC为由UTRAN提供给核心网30的所有服务,例如为管理到用户设备的连接,充当服务接入点。 UTRAN RNC by all services provided to the core network 30 is, for example, to manage the user equipment is connected, acts as the serving access point. Iub接口23连接节点B 22和无线网络控制器(RNC) 240 Iu接口把UTRAN连接到核心网。 Iub interface Node B 22 and 23 connected to a radio network controller (RNC) 240 Iu interface to the core network connected to the UTRAN. 无线网络控制器(RNC)提供Iu承载和基站之间的切换点。 Radio network controller (RNC) providing the switching point between the Iu bearer and the base station. 用户设备(UE) 10可在它自身和无线网络控制器(RNC) M之间,具有好几个无线承载。 The user equipment (UE) 10 may be between itself and the radio network controller (RNC) M, having several radio bearers. 该无线承载涉及用户设备(UE)场境(contex),该用户场境是Iub为了安排用户设备(UE)和无线网络控制器(RNC)之间的公共连接和专用连接而需要的一组定义。 Define a set of the radio bearer relates to a user equipment (UE) context (contex), the user context is to arrange Iub User Equipment (UE) and a radio network controller (RNC) and a dedicated connection between the common connection and the required . 相应的RNC 24可通过允许连接到不同节点22的小区之间的软越区切换的可选Iur接口,相互通信。 Corresponding RNC 24 via an Iur interface allows connection to an optional node between different cells 22 of a soft handoff, communication with each other. 这样,Iur接口允许RNC间的连接。 Thus, Iur interface allows connection between the RNC. 在这些情况下,当漂移RNC通过一个或多个基站22,把可通过Iur接口进行交换的帧,传送给移动台10时,服务RNC维持到核心网30的Iu 连接25,并执行选择器和外环功率控制功能。 In these cases, when the drift RNC, the frame may be exchanged over the Iur interface, through one or more base stations 22, transmitted to the mobile station 10, the serving RNC to the Core Network Iu 30 to maintain the connection 25, and performs the selection and The outer loop power control function.

[0075] 可把控制一个节点B 22的RNC称为节点B的控制RNC,它控制其自身小区的负荷和拥塞,还为在那些小区中将被建立的新无线链路执行接纳控制代码分配。 [0075] The control may be a Node B RNC 22 is the controlling RNC is referred to as a Node B, which controls its own cell load and congestion, as well as those cells in the new radio link is established performing admission control code assignment.

[0076] RNC和基站(或节点B)可经由Iub接口23连接和通信。 [0076] RNC and a base station (or Node B) can be connected via the Iub interface 23 and the communication. RNC控制每个连接到特定RNC M的基站22对无线资源的使用。 Each RNC controls the connection to a particular base station 22 M RNC using radio resource. 每个基站22控制一个或多个小区,并把无线链路提供给移动台10。 Each base station 22 controls one or more cells, and the radio link to the mobile station 10. 基站可执行接口处理,诸如信道编码和交织,速率适配和扩展。 The base station may perform interface processing, such as channel coding and interleaving, rate adaptation and expansion. 基站也 The base station also

10执行基本的无线资源管理操作,诸如内环功率控制。 10 performs basic radio resource management operations, such as the inner loop power control. 基站22转换Iub和Uu接口23、沈之间的数据流。 The base station 22 converts the data flow between the Iub and Uu interfaces 23, Shen. 基站22也参与无线资源管理。 The base station 22 is also involved in radio resource management. 空中接口UM6把每个基站22连接到移动台10。 UM6 air interface 22 is connected to each base station to the mobile station 10. 基站可负责一个或多个小区中到移动台10的无线发射,并可负责一个或多个小区中自移动台10的无线接收。 The base station may be responsible for one or more cells of the mobile station to the radio transmitter 10, and may be responsible for one or more cells in the radio reception from the mobile station 10.

[0077] 核心网30包括所有下述交换和路由选择能力:(1)如果当前是电路交换呼叫,则连接到PSTN 42,或者如果当前是分组交换呼叫,则连接到分组数据网络(PDN),(¾移动性和用户位置管理,和C3)认证服务。 [0077] The core network 30 comprises a switching and routing all of the following capabilities: (1) If the current is a circuit switched call, is connected to the PSTN 42, or if the current packet-switched call, is connected to a packet data network (the PDN), (¾ mobility and user location management, and C3) certification services. 核心网30可包括归属位置寄存器(HLR)32,移动交换服务中心/访问位置寄存器(MSC/VLR)34,网关移动交换中心(GMSC) 36,服务通用分组无线服务支持节点(SGSN) 38,和网关GPRS支持节点(GGSN) 40。 The core network 30 may include a home location register (HLR) 32, a Mobile Switching Center / Visitor Location Register (MSC / VLR) 34, a Gateway Mobile Switching Center (GMSC) 36, a serving general packet radio service support node (SGSN) 38, and gateway GPRS support node (GGSN) 40.

[0078] 可将核心网30连接到提供电路交换连接的外部电路交换(⑶)网络42,诸如在当前是分组交换呼叫情况下的公共交换电话网络(PSTN)或(ISDN),或者可将核心网30连接到PS网络44,诸如在当前是分组交换呼叫的情况下提供用于分组数据服务的连接的因特网。 [0078] can be the core network 30 is connected to provide an external circuit-switched (⑶) network 42 circuit-switched connections, such as in the current packet-switched public switched telephone network in the call case (PSTN) or (the ISDN), or may be the core network 30 is connected to the PS network 44, such as the Internet for providing a packet data service in the current connection is packet-switched call.

[0079] UMTS信令协议栈 [0079] UMTS signaling protocol stack

[0080] 图2是UMTS信令协议栈110的框图。 [0080] FIG. 2 is a block diagram of the UMTS signaling protocol stack 110. UMTS信令协议栈110包括接入层和非接入层(NAS)。 UMTS signaling protocol stack 110 includes an access layer and a non-access stratum (NAS).

[0081] 典型地,接入层包括物理层120、层2130和无线资源控制(RRC)层160,其中层2130包括媒体接入控制(MAC)层140和无线链路控制(RLC)层150。 [0081] Typically, access layer 120 comprises a layer 2130 and physical layer radio resource control (RRC) layer 160, wherein the layer 2130 includes a media access control (MAC) layer 140 and a radio link control (RLC) layer 150. 以下,将更详细地描述接入层的各层。 Hereinafter, the respective layers of the access layer is described in more detail.

[0082] UMTS非接入层实质上和GSM上层相同,并可被分成电路交换部分170和分组交换部分180。 [0082] UMTS and GSM non-access layer is substantially the same as the upper layer, and may be divided into a circuit switched portion 170 and a packet switched portion 180. 电路交换部分170包括连接管理(CM)层172和移动性管理(MM)层178。 Circuit switched portion 170 includes a connection management (CM) layer 172 and a mobility management (MM) layer 178. CM层172处理电路交换呼叫,并包括各种子层。 CM circuit switched call processing layer 172, and includes various sub-layers. 呼叫控制(CC)子层174执行诸如建立和释放的功能。 Call control (CC) sublayer 174 performs functions such as establish and release. 补充服务(SS)子层176执行诸如呼叫前转和三方通话的功能。 Supplementary Service (SS) sublayer 176 before execution, such as call forwarding and three-way calling function. 短消息服务(SMS) 子层177执行短消息服务。 Short Message Service (SMS) sublayer 177 to perform a short message service. MM层178为电路交换呼叫处理位置更新和认证。 MM layer 178 is a circuit switched call processing location updating and authentication. 分组交换部分180包括会话管理(SM)子层182和GPRS移动性管理(GMM)子层184。 Portion 180 includes a session management (SM) sublayer 182 and the GPRS Mobility Management (GMM) sublayer 184 packet switching. 会话管理(SM)子层182通过执行诸如建立和释放的功能,处理分组交换呼叫,并且还可包括短消息服务(SMS) 部分183。 Session Management (SM) sublayer 182 performs functions such as establish and release, the packet switched call processing, and may also include Short Message Service (SMS) portion 183. GMM子层184为分组交换呼叫处理位置更新和认证。 GMM sub-layer 184 is a packet-switched call handling location updating and authentication.

[0083] 图3是UMTS协议栈的分组交换用户平面的框图。 [0083] FIG. 3 is a block diagram of a UMTS protocol stack packet switched user plane. 该栈包括接入层(AS)和非接入层(NAQ。NAS层包括应用层80和分组数据协议(PDP)层90。应用层80被提供在用户设备(UE) 10和远程用户42之间。诸如IP或PPP的PDP层90,被提供在GGSN 40和用户设备(UE) 10之间。低层分组协议(LLPP) 39被提供在远程用户42和SGSN 38之间。Iu接口协议25被提供在无线网络控制器(RNC)M和SGSN 38之间,并且Iub接口协议被提供在无线网络控制器(RNC)M和节点B 22之间。下面将描述AS层的其它部分。 (NAQ.NAS layer comprises an application layer 80 and a packet data protocol (PDP) application layer 90. The layer stack includes an access stratum (AS) and Non-Access Stratum 80 is provided in a user equipment (UE) 10 and the remote user 42 Room. such as an IP or PPP layer of the PDP 90, is provided between the GGSN 40 and the user equipment (UE) 10. low-level packet protocol (LLPP) 39 is provided between the remote user 42 and SGSN 38 .Iu interface protocol 25 is provided between a radio network controller (RNC) M and the SGSN 38, and is provided in the Iub interface protocol between the radio network controller (RNC) M and node B 22. the following other portions of the AS layer will be described.

[0084]接入层(AS) [0084] The access stratum (AS)

[0085] 图4是UMTS信令协议栈的接入层部分的框图。 [0085] FIG. 4 is a block diagram of the UMTS access stratum part of the signaling protocol stack. 传统接入层包括物理层(Li) 120、 数据链路层(U) 130、无线链路控制(RLC)层150、分组数据汇聚协议(PDCP)层156、广播/ 组播控制(BMC)层158和无线资源控制(RRC)层160,其中数据链路层(L2) 130具有包括媒体接入控制(MAC)层140的子层。 Traditional access layer comprises a physical layer (Li) 120, a data link layer (U) 130, a radio link control (RLC) layer 150, a packet data convergence protocol (PDCP) layer 156, a broadcast / multicast control (BMC) layer 158 and a radio resource control (RRC) layer 160, wherein the data link layer (L2) 130 having a sublayer of layer 140 includes a media access control (MAC). 下面将进一步描述这些层。 These layers will be described further below.

[0086] 无线承载在应用层和层2 (U) 130之间传送用户数据163。 [0086] radio bearer between the application layer and the layer 2 (U) 130 163 transmit user data. 控制平面信令161可用于所有UMTS专用控制信令,并包括用于传输应用协议消息的信令承载中的应用协议。 Control plane signaling 161 may be used for all UMTS-specific control signaling, and includes an application signaling protocol for transmission of the application protocol message bearer. 应用协议可用于给UE 10建立承载。 Application protocol can be used to establish a bearer to the UE 10. 用户平面传输所有由用户发送和接收的用户平面信息163, 诸如语音呼叫中的编码语音或因特网连接中的分组。 All user plane transmission of user plane information 163 transmitted and received by the user, such as packet voice call connection encoded speech or the Internet. 用户平面信息163传送数据流和用于那些数据流的数据承载。 The user plane information 163 for data transfer and data stream carrying that data stream. 每个数据流可由一个或多个为那个接口指定的帧协议来表征。 Each data stream by one or more interfaces specified for that frame protocol characterized.

[0087] 无线资源控制(RRC)层160用作接入层的总控制器,并配置接入层中的所有其它层。 [0087] Radio Resource Control (RRC) layer 160 serves as the overall controller of the access layer and all other layers disposed in the access layer. RRC层160生成控制平面信令161,控制平面信令161控制无线链路控制单元152、物理层(Li) 120、媒体接入控制(MAC)层140、无线链路控制(RRC)层150、分组数据汇聚协议(PDCP)层156和广播/组播控制(BMC)层158。 RRC layer 160 generates a control plane signaling 161, 161 signaling the control plane control unit 152 controls the wireless link, a physical layer (Li) 120, a media access control (MAC) layer 140, Radio Link Control (RRC) layer 150, (PDCP) layer 156 and a packet data convergence protocol broadcast / multicast control (BMC) layer 158. 无线资源控制(RRC)层160确定所作的测量的类型,并汇报那些测量结果。 Radio Resource Control (RRC) layer 160 determines the type of measurements taken, and to report the results of those measurements. RRC层160还用作到非接入层的控制和信令接口。 RRC layer 160 also serves as the non-access layer control and signaling interface.

[0088] 更具体地,RRC层160把包括接入层和非接入层信元的系统信息消息,广播给所有用户设备(UE) 10。 [0088] More specifically, the RRC layer system information message 160 includes a non-access stratum and access stratum cell, broadcast to all the user equipment (UE) 10. RRC层160建立、维持和释放UTRAN 20和UE 10之间的无线资源控制(RRC)连接。 RRC layer 160 establishes radio resource control between maintaining and releasing UTRAN 20 and UE 10 (RRC) connection. UE RRC请求连接,而UTRAN RRC建立和释放连接。 UE RRC connection request, and the UTRAN RRC connection establishment and release. RRC层160还建立、重配置和释放UTRAN 20和UE 10之间的无线承载,并且通过UTRAN 20启动这些操作。 RRC layer 160 also established, reconfiguration and release of radio bearer between the UTRAN 20 and the 10 UE, UTRAN 20 and by starting the operation.

[0089] RRC层160还处理用户设备(UE) 10移动性的各方面。 [0089] RRC layer 160 also handles user equipment (UE) 10 aspects of mobility. 这些过程取决于UE状态,呼叫是电路交换的还是分组交换的呼叫,以及新小区的无线接入技术(RAT)。 These processes depend on the UE status, the call is a circuit switched or packet switched call, and the new cell radio access technology (RAT). RRC层160也寻呼UE 10。 RRC layer 160 also paged UE 10. UTRAN RRC寻呼UE,而不管UE是否在侦听寻呼信道或寻呼指示信道。 UTRAN RRC UE paging, regardless of whether the UE is listening on the paging channel or paging indicator channel. UE的RRC 通知核心网(CN) 30的上层。 UE's RRC notify the core network (CN) top 30.

[0090] 数据链路层(L2) 130包括媒体接入控制(MAC)子层40、无线链路控制(RLC)子层150、分组数据汇聚协议(PDCP)子层156和广播/组播控制(BMC)子层158。 [0090] The data link layer (L2) 130 includes a media access control (MAC) sublayer 40, a radio link control (RLC) sublayer 150, (PDCP) sublayer 156 and a packet data convergence protocol broadcast / multicast control (BMC) sublayer 158.

[0091] 广播和组播控制协议(BMC) 158通过在无线接口上与发自广播域的广播/组播服务相适应,来经由无线接口,传输发自小区广播中心的消息。 [0091] Broadcast and Multicast Control protocol (BMC) 158 sent from the broadcast domain by broadcast / multicast service on the radio interface adapted to, via the wireless interface to transfer a message sent from a cell broadcast center. BMC协议158提供称为“无线承载”的服务,并存在于用户平面中。 BMC 158 provides protocol referred to as "radio bearer" service, and present in the user plane. BMC协议158和RNC存储通过用于被调度的传输的CBC-RNC接口接收的小区广播消息。 BMC protocol storage 158 and the RNC by CBC-RNC for scheduled transmission of a broadcast message received by the cell interface. 在UTRAN端,BMC 158基于可通过(未示出的)CBC-RNC 接口接收的消息,计算为小区广播服务所需要的传输速率,并从RRC请求适当的CTCH/FACH 资源。 In the UTRAN side, BMC 158 may be based on a message by CBC-RNC interface receiver (not shown), calculates the transmission rate of the required cell broadcast service, and request the appropriate CTCH / FACH resources from the RRC. BMC协议158还通过CBC-RNC接口,把调度信息连同每个小区广播消息一起接收。 BMC protocol CBC-RNC 158 through an interface, the scheduling information received along with each cell broadcast message. 基于这个调度信息,在UTRAN端上,BMC生成调度消息,从而生成调度BMC消息序列。 Based on this scheduling information, on the UTRAN side, BMC scheduling message generation, message sequence to generate a BMC schedule. 在用户设备端上,BMC估计调度消息,并把调度参数指示给RRC,然后该RRC可使用这些调度参数来配置用于不连续接收的较低层。 On the user device side, BMC scheduling message is estimated, and indicates scheduling parameters to the RRC, the RRC may then use these parameters to configure the scheduling for the lower layer is discontinuous reception. BMC还传送BMC消息,诸如调度和根据调度的小区广播消息。 BMC BMC message is also transmitted, such as scheduling and cell broadcast messages according to schedule. 非损坏的小区广播消息可被传送到上层。 A nondestructive cell broadcast message may be transmitted to the upper layer. UE 10和UTRAN 20之间的部分控制信令无线资源控制(RRC) 160消息,该无线资源控制消息可以传送为建立、修改和释放层2协议130和层1协议120实体所需要的所有参数。 UE 10 and UTRAN 20, part of the control signaling between the radio resource control (RRC) 160 message, the RRC message may be transmitted to all parameters, modification and release layer 2 protocol layer 130 and a protocol entity 120 needs. RRC消息在它们的净荷中传送所有较高层信令。 All higher layer RRC signaling message in their payload. 无线资源控制(RRC)通过诸如测量、越区切换和小区更新的信令,控制处于连接模式中的用户设备的移动性。 Radio Resource Control (RRC), such as by measuring the handover and cell update signaling, control of the mobile user equipment in connected mode.

[0092] 分组数据汇聚协议(PDCP) 156存在于用于来自PS域的服务的用户平面中。 [0092] The packet data convergence protocol (PDCP) 156 present in the user plane for the service from the PS domain. 可把由PDCP提供的服务称为无线承载。 Services provided by the PDCP may be called radio bearers. 分组数据汇聚协议(PDCP)提供信头压缩服务。 Packet data convergence protocol (PDCP) service provides header compression. 分组数据汇聚协议(PDCP) 156包含有压缩方法,这些压缩方法能为通过无线电传送IP分组的服务提供更好的频谱效率。 Packet Data Convergence Protocol (PDCP) 156 comprising a compression method, the compression method can provide better spectral efficiency for the IP packets transmitted by radio services. 可使用几个信头压缩算法中的任何一个。 You may use any of several header compression algorithm. PDCP在传送实体上压缩冗余协议信息,在接收实体上解压缩这些信息。 Redundancy compressed PDCP protocol information on the transmission entity, decompress the information on the receiving entity. 信头压缩方法可以专用于特定的网络层、传输层或例如TCP/IP和RTP/UDP/IP的上层协议组合。 Header compression method may be dedicated to a particular network layer, transport layer or such as TCP / IP and RTP / UDP / IP protocol upper layer composition. PDCP还传送它用PDCP服务数据单元 It also transmits a PDCP PDCP service data unit

12(SDU)的形式从非接入层接收的用户数据,并把这些数据转发给RLC实体,反之亦然。 Form 12 (SDU) from received user data of the non-access layer, and forwards the data to the RLC entity, and vice versa. PDCP 还为无损SRNS重新定位提供支持。 PDCP also provides support for lossless SRNS relocation. 当PDCP使用确认模式(AM) RLC进行按序传送时,可被配置成支持无损RSRNS重新定位的PDCP实体,具有协议数据单元(PDU)序号,这些协议数据单元序号在重新定位期间,可连同未确认的PDCP分组,被一起转发到新的SRNC。 When PDCP using acknowledged mode (AM) RLC performed when the in-sequence delivery, may be configured to support lossless RSRNS repositioning PDCP entity having a protocol data unit (PDU) number, the protocol data unit number during repositioning may not together acknowledged PDCP packet is forwarded along to the new SRNC.

[0093] RLC层150通过可由UE端中的较高层协议和UTRAN端中的IURNAP协议使用的服务接入点(SAP),把服务提供给较高层(例如非接入层)。 [0093] RLC layer 150 is used by the higher layer protocol by the UE and the UTRAN end ends in IURNAP protocol service access point (SAP), the service provided to the higher layer (e.g. NAS). 服务接入点(SAPQ描述RLC层怎样处理数据分组。可把诸如移动性管理、呼叫控制、会话管理等的所有较高层信令,封装在RLC消息中,以用于无线接口的传输。RLC层150包括各种无线链路控制实体152,这些无线链路控制实体152通过传送信令信息和用户数据的逻辑信道被连接到MAC层140。 Service access point (SAPQ RLC layer processing described how data packets may be put, such as mobility management, call control, session management, etc. All higher layer signaling, encapsulated in RLC message, for transmission of radio interface layer .RLC 150 includes various radio link control entity 152, the radio link control entity 152 through a logical channel transmitting signaling information and user data to the MAC layer 140 is connected.

[0094] 在控制平面161上,RLC服务可由RLC层使用以用于信令传输。 [0094] On the control plane 161, RLC service the RLC layer may be used for signaling. 在用户平面163 上,RLC服务可由与特定服务协议层PDCP或BMC使用,或可由其它较高层用户平面功能使用。 On the user plane 163, RLC service may be used with a specific service protocol layers PDCP or BMC, or by other higher layer user plane functions. 对于不使用PDCP 156或用户平面协议的服务,在控制平面161中可将RLC服务称为信令无线承载,在用户平面163中可将其称为无线承载。 PDCP 156 is not used for the service or user plane protocol in the control plane 161 may be referred to as a signaling radio bearer RLC service, in the user plane 163 may be referred to as radio bearers. 换句话说,如果服务不能使用PDCP和BMC协议,则RLC层150在控制平面161中提供称为信令无线承载(SRB)的服务,并在用户平面163中提供称为无线承载(RB)的服务。 In other words, if the service does not use the protocols PDCP and BMC, RLC layer 150 provides the service is called Signaling Radio Bearer (SRB) in the control plane 161, and provides a called radio bearer (RB) in the user plane 163 service. 否则,RB服务可由PDCP层156或BMC层158 提供。 Otherwise, RB 158 service provided by the PDCP layer 156 or BMC layer.

[0095] 无线链路控制(RLC)层150对用户和控制数据执行成帧功能,该成帧功能包括分段/拼接和填充功能性。 [0095] Radio Link Control (RLC) layer 150, the user performs framing functions and control data, which includes a framing function segment / functional splice and filling. 典型地,RLC层150将分段和重传服务提供给用于控制平面161中的控制数据的无线资源控制(RRC) 160层,并提供给用于用户平面163中的用户数据的应用层。 Typically, the RLC layer segments 150 and retransmission services to radio resource control (RRC) 160 for controlling the control-plane layer 161 and provided to the application layer for the user plane 163 of the user data. 典型地,RLC层把可变长度的高层协议数据单元(PDU)分段成较小的RLC协议数据单元(PDU),和从较小的RLC协议数据单元(PDU)重组可变长度的高层协议数据单元(PDU)。 Typically, the variable length RLC layer level protocol data unit (PDU) segmented into smaller RLC protocol data unit (PDU), and from smaller RLC protocol data unit (PDU) layer protocols variable-length recombinant data unit (PDU). 典型地,一个无线链路控制(RLC)协议数据单元(PDU)传送一个PDU。 Typically, a radio link control (RLC) protocol data unit (PDU) transmitting a PDU. 例如,可根据用于使用无线链路控制(RLC)的服务的最小可能比特速率,来设置无线链路控制(RLC)PDU的大小。 For example, the minimum possible bit rate for a Radio Link Control (RLC) service, setting a radio link control (RLC) PDUs size. 如下面将讨论的,对于可变速率服务,当使用高于最低比特速率的任何比特速率时,在一个传输时间间隔(TTI)期间可传送几个无线链路控制(RLC)PDU。 As will be discussed below, for variable rate services, when any bit rate higher than the minimum bit rate used, may be transmitted several radio link control (RLC) PDU during a transmission time interval (TTI). RLC传送实体还执行拼接。 RLC transmitting entity also performs splicing. 如果无线链路控制(RLC)服务数据单元(SDU)的内容没有装满整数个无线链路控制(RLC) PDU,则可把下一无线链路控制(RLC)SDU的第一段放到无线链路控制(RLC)PDU中,与先前RLC SDU的最后一段拼接。 If the contents of a radio link control (RLC) service data unit (SDU) is not filled with an integer number of radio link control (RLC) PDU, to be the next radio link control (RLC) SDUs into a first segment wireless link control (RLC) PDU, the last segment of the previous RLC SDU of splicing. 典型地,RLC传送实体还执行填充功能。 Typically, RLC transmitting entity further performs filling function. 当剩余的将被传送的数据没有装满给定大小的整个无线链路控制(RLC)PDU时,那个数据字段的剩余部分,可用填充比特充满。 When the remaining data to be transmitted does not fill the entire size of a given radio link control (RLC) PDU, the remaining portion of the data field, may be filled with fill bits. 例如,根据下面参照图11-13讨论的本发明的方面,可提供用于减小或消除所使用的填充量的技术。 For example, from the following aspects of the invention discussed with reference to Figures 11-13, it may be provided for reducing or eliminating the amount of filler used in the art.

[0096] RLC接收实体检测接收到的无线链路控制(RLC)PDU的重复,并确保较高层PDU中的结果被传送给上层一次。 [0096] RLC receiving entity detects a received radio link control (the RLC) PDU duplication and ensure that the results of higher layer PDU is transmitted to the upper layer again. RLC层还控制PRLC传送实体可把信息发送给RLC接收实体的速率。 The RLC layer also controls PRLC transmitting entity may send information to the RLC receiving entity rate.

[0097] 图5A是说明在UMTS信令协议栈的无线链路控制(RLC)层中使用的数据传输模式的框图,该图显示了逻辑、传输和物理UMTS信道相对于接入层的可能的映射。 [0097] FIG 5A is a block diagram of a signaling protocol stack in a UMTS radio link control (RLC) layer in data transmission mode used for description, which shows a logical, transport and physical UMTS channels with respect to possible access layer mapping. 本领域的技术人员可理解的是,对于给定的用户设备(UE),所有映射将不一定在同一时刻被定义,一些映射的多个实例可同时发生。 Those skilled in the art will appreciate that, for a given user equipment (the UE), not necessarily all mappings will be defined at the same time, some of the plurality of mapping instances may occur simultaneously. 例如,语音呼叫可使用被映射到三个专用信道(DCH)传输信道的三个专用业务信道(DTCH)逻辑信道。 For example, a voice call may be mapped using three dedicated channel (DCH) transport channel three dedicated traffic channel (DTCH) logical channels. 而且,图5中显示的一些信道,诸如CPICH、SCH、DPCCH、AICH和PICH,存在于物理层背景中,并且不传送上层信令或用户数据。 Furthermore, some channels shown in FIG. 5, such as CPICH, SCH, DPCCH, AICH and the PICH, the physical presence of the background layer, the upper layer and does not transmit signaling or user data. 可在物理层120 (Li)定义这些信道的内容。 The content may be 120 (Li) which define the physical layer channels.

[0098] 无线链路控制(RLC)层中的每个RLC实例可由无线资源控制(RRC)层160配置成, 在以下三种模式中的一个模式中操作:透明模式(TM)、非确认模式(UM)或确认模式(AM)。 [0098] Radio Link Control (RLC) layer, each RLC instance may be a radio resource control (RRC) 160 configured to, in a pattern of three operating modes layer: a transparent mode ((TM)), an unacknowledged mode (UM) or acknowledged mode (AM). 将参照图5B在下面详细描述它们。 They are described with reference to FIG. 5B detail below. 三种数据传输模式指示出无线链路控制(RLC)为了逻辑信道而被配置的模式。 Three data transfer modes indicating radio link control (RLC) mode is configured for the logical channel. 透明和非确认模式RLC实体被定义成单向的,而确认模式实体是双向的。 Transparent and unacknowledged mode RLC entity is defined as unidirectional, the acknowledged mode entity is a bidirectional. 通常,对于所有RLC模式,CRC错误检测在物理层上被执行,并且CRC校验的结果, 连同实际数据一起被传送给RLC。 In general, for all RLC modes, CRC error detection is performed on the physical layer, and the CRC check result, actual data is transmitted along with RLC together. 根据每个模式的特定要求,这些模式执行RLC层150的一些或所有功能,包括分段、重组、拼接、填充、重传控制、流控制、重复检测、按序传送、纠错和加密。 The specific requirements of each mode, these modes perform some or all of functions of the RLC layer 150 including segmentation, recombinant, splicing, filling, retransmission control, flow control, duplicate detection, in-order delivery, error correction and encryption. 将参照图5B和5C在下面更详细地描述这些功能。 With reference to FIG. 5B and 5C of these functions are described in more detail below. 根据在此讨论的本发明的方面, 可提供一种新的无线链路控制(RLC)数据传输模式。 According to an aspect of the present invention discussed herein, may provide a new radio link control (RLC) data transmission mode.

[0099] MAC层140通过由传送的数据的类型所表征的逻辑信道,把服务提供给RLC层150。 [0099] MAC layer 140 by the type of data transmitted by the logical channel characterization, the service provided to the RLC layer 150. 媒体接入控制(MAC)层140把逻辑信道映射和复用到传输信道。 Media access control (MAC) layer 140 maps logical channels and transport channels multiplexed. MAC层140识别公共信道上的用户设备(UE)。 The MAC layer 140 a user equipment (UE) to identify common channel. MAC层140还把较高层PDU复用到被传送给公共传输信道上的物理层的传输块中,并把从公共传输信道上的物理层传送来的传输块解复用成较高层PDU。 The MAC layer 140 also multiplexed higher layer PDU is transmitted to a common transport channel transmission block in the physical layer, and the transport block transmitted from the physical layer to the common transport channel demultiplexed to higher layer PDU. MAC处理用于公共传输信道的服务复用,因为这不能在物理层中进行。 MAC processing for common transport channels multiplexed service, because it can not be performed in the physical layer. 当公共传输信道传送来自专用类型逻辑信道的数据时,媒体接入控制(MAC)信头包括UE的标识。 When a common transport channel transmitting data from a dedicated type logical channel, medium access control (MAC) header includes an identification of the UE. MAC层还把较高层PDU复用到被传送给专用传输信道上的物理层的传输块集中,或把从专用传输信道上的物理层传送来的传输块集解复用成较高层PDU。 The MAC layer also higher-layer PDU is multiplexed transport block set is transmitted to the physical layer dedicated transport channels or transferred from the physical layer of the dedicated transport channels multiplexed into transport blocks Variorum higher layer PDU.

[0100] MAC层140将RLC PDU,连同关于RLC传送缓冲器中的数据量的状态信息,一起接收。 [0100] MAC layer 140 to RLC PDUs, the RLC state information transmitted together with the amount of data in the buffer, the received together. MAC层140把与传输信道相对应的数据量,与RRC层160设置的阈值相比较。 The MAC layer 140 and the amount of data corresponding to the transmission channel, the RRC layer 160 with the threshold value set is compared. 如果数据量过高或过低,则MAC把关于业务量状态的测量报告,发送给RRC。 If the amount of data is too high or too low, the MAC on the measured traffic status reports sent to the RRC. RRC层160还可请求MAC层160周期性地发送这些测量结果。 RRC layer 160 can also request the MAC layer 160 periodically transmits these measurements. RRC层160使用这些报告,来触发无线承载和/或传输信道的重新配置。 The RRC layer 160 uses these reports to trigger reconfiguration of radio bearers and / or transport channels.

[0101] MAC层还取决于逻辑信道的瞬时源速率,为每个传输信道选择适当的传输格式(TF)。 [0101] MAC layer source rate is also dependent on the instantaneous logical channel, select the appropriate transport format (TF) for each transport channel. MAC层140通过为不同的数据流选择“高比特速率”和“低比特速率”传输格式(TF), 来提供数据流的优先级处理。 The MAC layer 140 are processed through different priority data stream is "high bit rate" and "low bit rate" transport format (TF) is to provide the data stream. 分组交换(PQ数据固有地是突发性的,因此可用于发送的数据的量随帧的不同而变化。当有更多的数据可用时,MAC层140可选择更高数据速率中的一个,然而当信令和用户数据都可用时,MAC层140在它们之间选择,以使从更高优先级信道发送的数据的量最大。可相对于可由接纳控制为每个连接定义的传输格式组合(TFC),来选择传输格式(TF)。 Packet switched (PQ data is inherently bursty, so the amount of data can be transmitted varies with different frames. When there is more data is available 140 select a higher data rate in a MAC layer, However, when the signaling and user data are available, the MAC layer 140 therebetween selected so that data transmitted from the higher priority channel the maximum amount may be controlled with respect to the admission by the transport format combination is defined for each connection (TFC), to select the transport format (TF).

[0102] 媒体接入控制(MAC)层还执行加密。 [0102] Media Access Control (MAC) layer also performs encryption. 可分别对每个无线承载加密。 Respectively encrypting each radio bearer. 加密的细节被描述在3GPP TS 33. 102 中。 Encryption details are described in 3GPP TS 33. 102.

[0103] 在诸如WCDMA的系统中,有三种类型的可用于传送分组数据的传输信道。 [0103] In a system such as WCDMA, there are three types of channels available for transmission of packet data transmission. 这些信道是通常所说的公共传输信道、专用传输信道和共享传输信道。 These channels are known as the common transport channel, a dedicated transport channel and a shared transport channel. 在下行链路中,传输信道分组数据由分组调度算法来选择。 In the downlink, transmission channel packet data is selected by the packet scheduling algorithm. 在上行链路中,传输信道由移动式装置10基于分组调度算法设置的参数来选择。 In the uplink, transmission channel parameters 10 based on packet scheduling algorithm provided by the selected mobile device.

[0104] 公共信道可以是例如上行链路中的随机接入信道RACH和下行链路中的前向接入信道FACH。 [0104] common channel may be for example an uplink random access channel RACH, and the downlink in the previous access channel FACH. 它们都传送信令数据和用户数据。 They all carry the signaling data and user data. 公共信道具有低建立时间。 A common channel having a low settling time. 由于公共信道在连接建立前可用于发送信号,所以公共信道可立刻用于发送分组,而没有很长的建立时间。 Since the common channel is established before the connection may be used to transmit signals, the common channel may be used to transmit a packet immediately without a long setup time. 典型地,每个扇区有几个RACH或FACH。 Typically, each sector has several RACH or FACH. 公共信道不具有反馈信道,因此典型地使用开环功率控制或固定功率。 A common channel having no feedback channel, thus typically use open loop power control or a fixed power. 而且,公共信道不能使用软越区切换。 Furthermore, you can not use common channel soft handoff. 因此,公共信道的链路电平性能会比专用信道的链路电平性能差,并且会比专用信道产生更多的干扰。 Thus, the link performance level of the common channel will be worse than the performance level of the uplink dedicated channel, and generates more interference than a dedicated channel. 因此,公共信道可更适于传送小的单个分组。 Thus, the common channel may be more suitable for the smaller transmit a single packet. 在公共信道中使用的应用,将是诸如短消息服务和短文本邮件的应用。 In the application of common channel used will be applications such as short message services and short text messages. 把单个请求发送给网页,也很符合公共信道的概念,但是在较大数据量的情况下,公共信道遭受差的无线性能。 The request is sent to a single page, it is also consistent with the concept of a common channel, but in the case where a large amount of data, a common channel suffers poor wireless performance.

[0105] 专用信道可使用改善无线性能的快速功率控制和软越区切换特性,并且典型地, 比公共信道产生更少的干扰。 [0105] dedicated channel may be used to improve the fast power control and soft handover radio performance switching characteristics, and typically generate less interference than a common channel. 然而,建立专用信道比接入公共信道花费更多的时间。 However, establishing a dedicated channel takes more time than the common access channel. 专用信道可具有从几千字节每秒直到2兆字节每秒的可变比特速率。 Dedicated channel may have a variable bit rate from a few thousand bytes per second up to 2 megabytes per second. 由于在传输期间比特速率发生变化,所以必须根据最高比特速率分配下行链路正交码。 Since the change in the bit rate during transmission, it is necessary to assign an orthogonal code according to the highest downlink bit rate. 因此,可变比特速率专用信道消耗有价值的下行链路正交码空间。 Therefore, the variable bit rate dedicated channels consume valuable downlink orthogonal code space.

[0106] 物理层(Li) 120通过传送信令信息和用户数据的传输信道,连接到MAC层140。 [0106] The physical layer (Li) 120 through a transmission channel for transmitting signaling information and user data to the MAC layer 140 is connected. 物理层120通过可由怎样传送特性数据和传送什么样的特性数据来表征的传输信道,把服务提供给MAC层。 How physical layer 120 and data transmission characteristics of diversity of the data transfer may be characterized by the transmission channel, to provide services to the MAC layer.

[0107] 物理层(Li) 120通过物理信道,接收无线链路上的信令和用户数据。 [0107] The physical layer (Li) 120 through a physical channel, receiving signaling and user data over the wireless link. 典型地,物理层(Li)执行复用和包括CRC计算的信道编码、前向纠错(FEC)、速率匹配、交织传输信道数据、和复用传输信道数据,以及其它物理层过程,诸如获取、接入、寻呼和无线链路建立/失败。 Typically, the physical layer (Li) performs multiplexing and comprising channel coding the CRC calculation, before rate matching forward error correction (the FEC), interleaving transport channel data, and multiplexing transport channel data, and the other physical layer procedures, such as access , access, paging and wireless link establishment / failure. 物理层(Li)还可负责扩频和加扰、调制、测量、传送分集、功率加权、越区切换、压缩模式和功率控制。 The physical layer (Li) may be responsible for spreading and scrambling, modulation, measurement, transmission diversity, power weighting, handover, power control, and the compressed mode.

[0108] 图5B是显示无线链路控制(RLC)层的结构的框图。 [0108] FIG 5B is a block diagram showing a configuration of a radio link control layer (RLC). 如上面提到的,无线链路控制(RLC)层150中的每个RLC实体或实例152可由无线资源控制(RRC)层160配置成,在以下三种数据传输模式中的一个模式中操作:透明模式(TM)、非确认模式(UM)或确认模式(AM)。 As mentioned above, radio link control (RLC) entity or each RLC layer 150 instance 152 may be a radio resource control (RRC) layer 160 is arranged, in a pattern of three data transfer modes of operation: a transparent mode (TM), unacknowledged mode (UM), or acknowledged mode (AM). 服务质量(0必)设置可控制用于用户数据的数据传输模式。 Quality of Service (0 Required) is provided for controlling data transmission mode can be user data.

[0109] TM是单向的,并包括传送TM实体152A和接收TM实体152B。 [0109] TM is unidirectional, and transmitting TM entity comprising a receiving TM entity 152A and 152B. 在透明模式中,没有协议顺序被加到较高层数据中。 In transparent mode no protocol higher layer are sequentially applied to the data. 可丢弃错误的协议数据单元(PDU)或将其标为错误的。 Disposable erroneous protocol data unit (PDU) or mark it as an error. 在较高层数据典型地没有被分段的情况下,可使用流式传输,尽管在特定情况下,可以实现有限的分段/重组能力的传送。 In the case of higher-layer data is typically not segmented, streaming may be used, although in certain cases, the transfer may be achieved with limited segmentation / reassembly capability. 当使用分段/重组时,可在无线承载建立过程中协商。 When a segmentation / reassembly, may be negotiated during the establishment of the radio bearer.

[0110] UM也是单向的,并包括传送UM实体152C和接收UM实体152D。 [0110] UM is unidirectional, and transmitting UM entity comprising a receiving UM entity 152C and 152D. UM RLC实体被定义为单向的,因为不需要上行链路和下行链路之间的联系。 UM RLC entity is defined as a unidirectional, since unnecessary contact between the uplink and downlink. 在UM中不保证数据传送。 In UM data transfer is not guaranteed. UM可用于例如某RRC信令过程,在该过程中,确认和重传不是RRC过程的一部分。 UM may be used, in the process, for example, a part of RRC signaling procedures are not acknowledgment and retransmission of RRC procedure. 使用非确认模式RLC的用户服务的实例是,小区广播服务和通过IP的语音。 Examples of user services using the RLC unacknowledged mode is a cell broadcast service and Voice over IP. 根据配置,可标记接收到的错误数据或将其丢弃。 Depending on the configuration, it may be marked erroneous data received or discarded. 可应用没有显式信令功能的基于计时器的丢弃,这样,可简单地把不能在指定时间内传送的RLCPDU,从传送缓冲器中移除。 It can be applied without explicit signaling functions, so, can not be simply RLCPDU transmitted within a specified time, is removed from the transmission buffer timer based discard. 在非确认数据传输模式中,PDU构造包括序号,并且可执行序号校验。 In unacknowledged mode data transfer, including the serial number PDUs structure, and may perform the check serial number. 序号校验通过在无线链路控制(RLC) PDU被重组到无线链路控制(RLC)SDU中时,校验无线链路控制(RLC)PDU中的序号,来帮助保证重组的PDU的完整性,和提供检测损坏的无线链路控制(RLC) SDU的手段。 ID verification by the radio link control (RLC) PDU is recombined into a radio link control (RLC) SDU time, the check Radio Link Control (RLC) sequence number in the PDU, a PDU to help ensure the integrity of the recombinant and a damage detecting means to provide a radio link control (RLC) SDU is. 可以丢弃任何损坏的无线链路控制(RLC) SDU。 Any damage can be discarded Radio Link Control (RLC) SDU. 在非确认模式(UM)中还可提供分段和拼接。 In unacknowledged mode (UM) and splice segment may also be provided.

[0111] 在确认模式中,RLC AM实体是双向的,并能把链路状态的指示捎带在反方向的用 [0111] In acknowledged mode, RLC AM entity is bidirectional, and can link status indication piggybacked in the reverse direction by

15户数据中。 15 data. 图5C是显示用于实现无线链路控制(RLC)确认模式(AM)实体的实体和怎样能构造AM PDU的框图。 5C is a display for realizing radio link control (RLC) acknowledged mode (AM) entity and entity how a block diagram of AM PDU can be constructed. 经由AM-SAP从较高层接收的数据分组(RLC SDU),可被分段和/或拼接514成固定长度的协议数据单元(PDU)。 Via a data packet (RLC SDU) AM-SAP received from a higher layer, may be segmented and / or splice 514 into fixed-length protocol data unit (PDU). 协议数据单元的长度是在无线承载的建立中被决定的半静态的值,并可通过RRC无线承载重新配置过程改变。 The length of the protocol data unit is a semi-static value in establishing the radio bearer is determined, and may change the bearer reconfiguration procedure through an RRC radio. 为了拼接或填充目的,可把载有关于长度和扩展信息的比特,插到最后一个协议数据单元的开头部分中,或者包括来自SDU的数据。 To splice or filling purposes, may contain the bit length and the information about the extensions, into the beginning of the last protocol data unit, including data from or SDU. 如果几个SDU可放入一个PDU,则可将它们拼接。 If several SDU can be placed in a PDU, you can stitch them. 可把适当的长度指示符(Li)插入PDU的开头部分中。 It can be the appropriate length indicator (Li) is inserted into the beginning of the PDU. 然后,可把PDU放在传送缓冲器520中,该传送缓冲器也维护重传管理。 Then, the PDU may be placed in the transmit buffer 520, transmission buffer also maintains the retransmission management.

[0112] 可通过如下方式构造PDU :从传送缓冲器520取一个PDU,为其加信头,如果PDU中的数据没有充满整个RLC PDU,则可添加填充字段或添加捎带的状态消息。 [0112] PDU can be configured by way: take a PDU transmitted from the buffer 520, for adding a header, if the data does not fill the entire PDU in the RLC PDU, padding fields may be added or piggybacked status message is added. 捎带的状态消息可发自接收端或发自发送端,以指示出RLCSDU的丢弃。 Piggybacked status message may be sent from the receiving side sent from the transmitting side or to indicate the RLCSDU discarded. 信头包含RLC PDU序号(SN),可用于从对等实体请求状态的查询位(P),和可选的长度指示符(Li),如果在RLC PDU中发生了SDU拼接、填充、或捎带PDU,则可使用该长度指示符。 RLC PDU header comprising a sequence number (the SN), from the peer entity may be used to request status inquiry bits (P), and optionally the length indicator (Li), if the SDU in the RLC PDU splicing occurs, the filling, or incidentally PDU, the length indicator may be used.

[0113] 典型地,确认模式(AM)用于分组类型的服务,诸如因特网浏览和邮件下载。 [0113] Typically, an acknowledged mode (AM) for packet types of services, such as Internet browsing and e-mail downloads. 在确认模式中,自动重复请求(ARQ)机制可用于纠错。 In acknowledged mode automatic repeat request (ARQ) error correction mechanism can be used. 任何接收到的具有误码的分组可被重传。 Any packets received with error may be retransmitted. RLC的质量对延迟的性能,可由RRC通过配置由RLC提供的许多重传来控制。 RLC delay quality performance, RRC may configure a number of retransmission control provided by the RLC. 如果RLC不能正确地传送数据,例如,如果已达到重传的最大数目,或者已超过重传时间,则通知上层,并且可丢弃该无线链路控制(RLC) SDU。 If the RLC data can not be transmitted correctly, for example, if the maximum number of retransmissions or the retransmission time has been exceeded, the upper layer is notified, and may discard the radio link control (RLC) SDU. 还可通过在状态消息中发送移动接收窗口命令,来把SDU的丢弃操作通知对等实体,以便接收器也移除所有属于被丢弃的无线链路控制(RLC) SDU 的PDU。 Transmitted by the mobile may also receive a message in the status window commands to the SDU discard operation notification peer entity, so that the receiver can remove all belonging to the discarded Radio Link Control (the RLC) SDU to PDU.

[0114] 既可为按序传送也可为无序(out-of-sequence)传送配置RLC。 [0114] can also be transmitted in-sequence delivery to RLC configured disordered (out-of-sequence) is. 通过按序传送, 可维持较高层的PDU的顺序,而无序传送一旦完整接收到较高层PDU,就把它们发送出去。 By sequence delivery, the order can be maintained higher layer PDU is, once the complete sequence delivery to higher layers received PDU, put them sent. RLC层提供较高层PDU的按序传送。 RLC layer provides in-sequence delivery of higher layer PDU. 这个功能保持了被提交以供RLC传送的较高层PDU的顺序。 This function keeps the order is submitted for a higher layer PDU RLC transmitted. 如果不使用这个功能,则可提供无序传送。 If you do not use this feature, you can provide order delivery. 除了数据PDU传送以外,状态和重置控制过程可在对等RLC实体之间被用信号发送。 In addition to data PDU transmission, the reset state, and control may be signaled between the peer RLC entity. 控制过程甚至能使用分离的逻辑信道,这样,一个AM RLC实体能使用一个或两个逻辑信道。 Even control process using separate logical channel, so that one AM RLC entity can use one or two logical channels.

[0115] 在RLC层中可为确认和非确认RLC模式执行加密。 [0115] RLC layer may be performed in order to confirm the encryption and RLC unacknowledged mode. 在图5C中,除了包括PDU序号和查询位的两个前两位以外,AM RLC PDU被加密MO。 In FIG. 5C, in addition to the two PDU sequence numbers comprising the first two bits and the query, AM RLC PDU is encrypted MO. PDU序号是加密算法的一个输入参数,并且必须可由对等实体读取,以执行加密。 PDU sequence number is an input parameter of the encryption algorithm, and must be read by a peer entity to perform encryption. 3GPP规范TS33. 102描述了加密。 Specification 3GPP TS33. 102 encryption is described.

[0116] 然后,可经由逻辑信道把PDU转发给MAC层140。 [0116] Then, the PDU may be forwarded to the MAC layer via a logical channel 140. 在图5C中,额外的逻辑信道(DCCH/DTCH)用虚线显示,说明可把一个RLC实体配置成,使用不同的逻辑信道来发送控制PDU和数据PDU。 In FIG. 5C, an additional logical channel (DCCH / DTCH) shown in dashed lines, may be described as the one RLC entity configured to transmit the control PDU and the data PDU using different logical channels. AM实体的接收端530通过逻辑信道中的一个,从MAC层接收RLC AMPDU0 可用能在整个RLC PDU上计算的物理层CRC,来校验误码。 AM entity of the receiving side 530 through a logical channel, receiving RLC AMPDU0 can be used in a physical layer CRC calculated over the entire RLC PDU from the MAC layer, to verify the error. 实际的CRC校验可在物理层中执行,并且RLC实体接收CRC校验的结果连同整个信头被解密后的数据,并且可能的捎带的状态信息可从RLC PDU中被提取。 The actual CRC check may be performed in the physical layer, and the RLC entity receives the CRC check the entire data is decrypted together with the header, and the information may be piggybacked status may be extracted from the RLC PDU. 如果接收到的PDU是健壮的消息,或者如果状态信息被捎带在AM PDU中,则可把控制信息(状态消息)传给发送端,发送端对照接收到的状态信息来检查其重传缓冲器。 If the received PDU is a robust message, or if the information is piggybacked status PDU in the AM, the control may be the information (status message) to the transmitting side, the transmitting side controls the received information to check the status of its retransmission buffer . 来自RLC信头的PDU编号被用于解密550,在把加密的PDU存储到接收缓冲器中时,PDU序号也被使用。 PDU numbers from RLC header 550 is used for decrypting, when the encrypted PDU stored in the reception buffer, PDU sequence number is also used. 一旦属于完整的SDU的所有PDU在接收缓冲器中时,就能重组SDU。 Once complete SDU belonging to all of the PDU in the receive buffer, the recombinant can SDU. 尽管没有示出,在RLC SDU被传送到较高层之前,可为按序传送和重复检测执行校验。 Although not shown, it is transmitted to the RLC SDU level than before, may be performed to verify sequence delivery and duplicate detection.

[0117] 当用户设备(UE)或移动台在PTM传输和点对点(PTP)传输之间移动(或改变小区)时,RLC实体152被重新初始化。 [0117] When a user equipment (UE) or mobile station moves (or cell change) between the PTM transmission and point to point (PTP) transmission, RLC entity 152 is re-initialized. 这会不尽如人意地导致任何位于无线链路控制(RLC) 缓冲器中的数据的丢失。 This leads to unsatisfactory for any loss of data located in a radio link control (RLC) buffer. 如上面提到的,当移动台从一个小区移动到另一个时,或当在服务小区内多媒体广播和组播服务(MBMS)内容的传输从点对点(PTP)传输模式变成点对多点(PTM)传输模式时,问题可能会出现。 As mentioned above, when the mobile station moves from one cell to another, or when the transmission in the serving cell Multimedia Broadcast and Multicast Service (MBMS) content becomes from point-to-multipoint (PTP) transmission mode ( when PTM) transmission mode, problems may occur.

[0118] 期望能在点对点(PTP)传输和点对多点(PTM)传输之间的转换期间,或在不同小区之间发生的转换(例如,越区切换)期间,保持多媒体广播和组播服务(MBMQ的连续性, 并期望能避免重复信息的提交。为了保持MBMS服务的连续性和避免重复消息的提交,层2150应该能重新排列来自两个流的数据。这种同步不能由物理层提供,因为网络终点在每个模式中可能不同。如果在RLC层150下面执行前向纠错(FEC),如3GPP2中的情况那样, 则在点对多点(PTM)传输和点对点(PTP)传输之间的任何转换期间以及在反方向的转换期间,可能会丢失数据。此外,这将要求物理层同步和在多个小区(例如,具有公共调度)之间共享相同的媒体接入控制(MAC)。因而,这会在这些假定所不适用的3GPP2中引起问题。 [0118] During forward to point (PTP) during a transition between the transmission and point to multipoint (PTM) transmission, or a transition occurs between different cells (e.g., handover), multimedia broadcast multicast holding service (MBMQ continuity, and hope to avoid duplication of information submitted in order to avoid repetition and continuity of the MBMS service message submission, layer 2150 should be able to rearrange the data from the two streams. such synchronization can not by the physical layer provided, since the end of the network may be different in each mode. If the RLC layer 150 beneath the performing forward error correction (the FEC), such as the case of 3GPP2, the point to multipoint (PTM) transmission and point to point (PTP) during the conversion and the reverse direction, the conversion may be lost any time between the transmission data. in addition, this would require the physical layer synchronization cells and between a plurality of (e.g., having a common scheduling) share the same media access control ( the MAC). thus, this causes a problem in these assumptions do not apply in 3GPP2.

[0119] 点对点(PTP)传输 [0119] Point (PTP) transmission

[0120] 假定应用具有显著的延迟容忍度,则对于点对点(PTP)传输来说最有效的数据传输模式是无线链路控制(RLC)确认模式(AM)。 [0120] assumed that the application has a significant delay tolerance, is most effective for point to point (PTP) transmission mode for data transmission is a radio link control (RLC) acknowledged mode (AM). 例如,RLC确认模式(AM)典型地用于专用逻辑信道上的分组交换数据传送(PTP)。 For example, RLC acknowledged mode (AM), typically on the packet-switched data transmission for a dedicated logical channel (PTP). RLC在专用逻辑信道上的确认模式(AM)中操作。 RLC acknowledged mode on a dedicated logical channel (AM) operation. 如图5A所示,在下行链路方向上用于一个用户服务的专用用户业务,可通过称为专用业务信道(DTCH)的逻辑信道被发送。 5A, in the downlink direction of a dedicated user traffic service user, may be transmitted through a channel called a dedicated traffic channel (DTCH) logical channels.

[0121] 在确认模式(AM)中,如果数据有误码,则反向链路可用于重传请求。 [0121] In acknowledged mode (AM), if there is a data error, then the reverse link can be used to request retransmission. RLC传送服务数据单元(SDU),并通过重传来保证对其对等实体的传送。 Transmitting RLC service data unit (SDU), and transmission through retransmission to ensure its peer entity. 如果RLC不能正确地传送数据, 则在传送端的RLC的用户被通知。 If the RLC does not transfer the data correctly, the user is notified in the RLC transmitting end. 在RLC AM中操作通常有更高的功率效率,这是以引入附加延迟为代价的。 In operation RLC AM usually have higher power efficiency, which is the cost of introducing additional delay.

[0122] 点对多点(PTM)传输 [0122] multipoint (PTM) transmission

[0123] 公共业务信道(CTCH)是存在于下行链路方向中的单向信道,并且当把信息传送给所有终端或特定的一组终端时,可使用该公共业务信道。 [0123] Common Traffic Channel (the CTCH) is present in the downlink direction the unidirectional channel, and when the terminal transmits information to all or a specific group of terminals, the use of the common traffic channel. 这些数据传输模式都使用不建立反向链路信道的单向公共信道。 These data transfer modes are currently used to establish the unidirectional reverse link channel common channel.

[0124] 期望能提供一种允许MBMS服务在点对点(PTP)和点对多点(PTM)传输模式之间透明切换的构造。 [0124] desirable to provide a method that allows switching between a transparent MBMS service point (PTP) and point to multipoint (PTM) transmission mode configuration. 为了在点对点(PTP)和点对多点(PTM)传输模式之间的转换时获得良好的性能,也期望能提供一种允许在不同无线链路控制(RLC)模式之间切换的构造。 To obtain good performance in the transition between the point (PTP) and point to multipoint (PTM) transmission mode, can also be desirable to provide a configuration allowing between different radio link control (RLC) mode switching. 这能帮助例如降低功率要求。 This example can help reduce power requirements.

[0125] 现在将根据所显示的并参照图6至19描述的实施例,来描述本发明的方面。 [0125] The now shown with reference to FIGS. 6-19 and described embodiment, the described aspects of the invention. 这些特征,通过使用新的前向纠错(FEC)层,尤其能有助于保持在这些转换期间的服务连续性。 These characteristics, by using a forward error correction (FEC) layer, in particular, can help to maintain service continuity during the conversion of these new front.

[0126] 图6是改进的具有能在前向纠错(FECd)模式和前向纠错(FECc)模式中操作的前向纠错(FEC)层的UMTS协议栈的图。 [0126] FIG. 6 is a view of a modified can be forward error correction (FECD) mode and a forward error correction (FECC) the previous operating mode UMTS protocol stack layer forward error correction (FEC) is. 前向纠错(FEC)层允许下层的无线链路控制(RLC) 实体152在用户设备(UE)从点对点(PTP)传输变成点对多点(PTM)传输时,从一种无线链路控制(RLC)数据传输模式变成另一种无线链路控制(RLC)数据传输模式,同时维持服务连续性。 When the former allows the lower forward error correction (FEC) layer, a radio link control (RLC) entity 152 in the user equipment (UE) becomes the point to multipoint (PTM) transmission from point to point (PTP) transmission, from a radio link control (RLC) data transmission mode into another radio link control (RLC) data transmission mode, while maintaining service continuity. 根据这个实施例,FEC层能在第一模式(FECc)或第二模式(FECd)中操作。 According to this embodiment, FEC layer is capable of operating in a first mode (FECC) or second mode (FECD) in. 在一 In a

17个实现方案中,第一模式(FECc)能使用奇偶块,第二模式(FECd)能在不使用奇偶块的情况下操作。 17 implementation, a first mode (FECC) parity blocks can be used, a second mode (FECD) capable of operating without the use of parity blocks. 在FECd和FECc模式之间改变的影响会比在RLC模式间改变的影响低得多,并且可以是无缝的,以便在转换期间没有数据丢失。 And much influence between FECd FECc be lower than the mode change between the RLC mode changes affect, and may be seamless, so that no data is lost during conversion.

[0127] 前向纠错(FECc)模式可使用外部编码技术来保护用户数据。 [0127] using an external front forward error correction encoding technique (FECC) mode to protect user data. 这在公共信道上会是特别有效的。 This is particularly effective in a common channel. 前向纠错(FECc)模式允许在无线链路控制(RLC)层上,具有典型地在非确认模式(UM)中存在的功能,诸如成帧(分段和拼接)和序号添加。 Allowing a forward error correction (FECC) mode on the radio link control (RLC) layer, having typically unacknowledged mode (UM) present in functions, such as framing (segmentation and stitching) is added and serial number. 结果,无线链路控制(RLC)层能为点对多点(PTM)传输使用透明模式(TM),因为传统的非确认模式(UM)功能可在前向纠错(FEC)层执行。 As a result, radio link control (RLC) layer energy (PTM) using the transparent transmission mode is point to multipoint ((TM)), because the conventional unacknowledged mode (UM) performing forward error correction function (FEC) layer first. 尽管可在无线链路控制(RLC)确认模式(AM)中复制这个功能, 但是由于ARQ产生的增益补偿了这种复制。 Although it was confirmed in a radio link control (RLC) mode (AM) This copy function, but since the gain of this ARQ to compensate for variations replication.

[0128] 通过把前向纠错(FEC)层或外部编码层置于无线链路控制(RLC)层上方,可把序号加在独立于无线链路控制(RLC)的层中。 [0128] placed in a radio link control (RLC) layer above the forward error correction (FEC) coding layer or outer layer is formed by the front, the sequence number can be added independent of the radio link layer control (RLC) in the. 对非确认传输使用诸如序号的附加开销,能在MBMS数据的异步传输期间重新排列具有编码器分组(EP)的协议数据单元(PDU)。 Use of non-acknowledged transport overhead, such as numbers, could rearrange the protocol data unit (PDU) with an encoder packet (EP) during asynchronous transmission of MBMS data. 因为序号被加在无线链路控制(RLC)上方的层,所以序号在点对点(PTP)传输和点对多点(PTM) 传输中是公共的,因此当从点对多点(PTM)传输到点对点(PTP)传输的转换发生时,能维持序号的连续性。 Because the sequence number is added over a radio link control layer (the RLC), so that the point number (PTP) transmission and point to multipoint (PTM) transmissions are common, and therefore when the transmission from the point to multipoint (PTM) to point to point (PTP) transmission transition occurs, to maintain the continuity of the sequence number. 这允许数据被重新排列,以便能避免数据的重复和/或数据的丢失。 This allows data to be rearranged in order to avoid duplication of data loss and / or data.

[0129] 也可在点对点(PTP)传输中使用外部编码,这能潜在地为系统获得一些功率和/ 或减小重传的延迟。 [0129] outer code can also be used in point to point (PTP) transmission, which can potentially get a number of power delay and / or reduce retransmission system. 多媒体广播和组播服务(MBMQ数据能具有一定程度的延迟容忍。在点对点(PTP)传输中,提供有反馈路径。由于在必要时使用ARQ重传,使得无线链路控制(RLC)确认模式(AM)的使用更有效,其中ARQ重传通常比总是发送附加奇偶块的FEC方案更有无线效率。因而,在例如点对点(PTP)的专用逻辑信道上,对MBMS净荷数据添加奇偶块是不必要的。 Multimedia Broadcast and Multicast Service (MBMQ data delay can have a certain degree of tolerance. Point to point (PTP) transmission, provided with a feedback path. Since the ARQ retransmission when necessary, so that the radio link control (RLC) acknowledged mode ( AM) more effective use, wherein the ARQ retransmission typically thus, for example, a dedicated logical channel on a point to point (PTP), the parity block is added to the payload data than MBMS always send additional parity blocks of the FEC scheme more efficient wireless Yes unnecessary.

[0130] 图7A和7B显示了接入层的协议结构的实施例,该接入层包括置于无线链路控制(RLC)层150上方的前向纠错(FEC)层157。 [0130] FIGS. 7A and 7B show an embodiment of a protocol structure of the access layer, which includes a front layer disposed access radio link control (RLC) layer 150 over a forward error correction (FEC) layer 157. 将参照图11来描述前向纠错(FEC)层的一个实施例。 FIG 11 described in the previous embodiment a forward error correction (FEC) layer will be described.

[0131] 前向纠错(FEC)层157直接通过用户平面无线承载来接收用户平面信息163。 [0131] the front layer 157 directly receives user plane information 163 through a user plane radio bearer forward error correction (FEC). 由于前向纠错(FEC)层位于无线链路控制(RLC)层的顶部,所以FEC协议数据单元(PDU)对应于RLC服务数据单元(SDU)。 Since the radio link control located in front of the top (RLC) layer forward error correction (FEC) layer, the FEC protocol data unit (PDU) corresponding to the RLC service data unit (SDU). FEC层最好支持:任意(限制为8比特的多倍的)SDU大小、 可变速率源、无序接收来自低层的分组,和接收来自低层的重复分组。 FEC layer preferably supports: arbitrary (limited to a multiple of 8 bits) size SDUs, the variable rate of the source, from lower layer packets received out of order, and duplicate packets received from the lower layer. 可把FEC PDU的大小限制为8比特的多倍。 The FEC PDU size can be limited to a multiple of 8 bits.

[0132] 如参照图9A在下面更详细描述的那样,FEC层157把诸如SDU的较高层用户数据块,分段和拼接成相等大小的行。 [0132] As described with reference to FIG. 9A, as described in more detail below, the FEC layer 157 of a higher layer SDU such as user data block, and splice segments into equal-sized lines. 也可把每行称为内部块。 Each line may also be referred to as an internal block. 每个协议数据单元(PDU)可包括开销。 Each protocol data unit (PDU) may comprise overhead. 开销可包括长度指示符(Li),该长度指示符指示出最后一个协议数据单元(PDU) 的起始位置,这样来自特定用户数据块的数据,诸如服务数据单元(SDU),可被定位。 Overhead may include a length indicator (Li), the length indicator indicating a start position of a last protocol data unit (PDU), so that the specific user data from the data block, such as a service data units (SDUs), can be positioned. PDU的集合包括编码器分组(EP)或“编码器矩阵”。 Set the PDU comprises an encoder packet (EP) or "coding matrix." 包括在编码器分组(EP)中的PDU的编号,尤其取决于被使用的外部代码。 Comprising a number of PDU encoder packet (EP), in particular depending on the external codes to be used. 把每个编码器“矩阵”行打包到独立的或单独的传输时间间隔(TTI)中,能增强物理层性能。 Each encoder the "matrix" line packaged into separate or individual transmission time interval (TTI), the physical layer performance can be enhanced. 为了减小缓冲负担,可使用较短的传输时间间隔(TTI)持续时间。 In order to reduce the burden of the buffer, using a shorter transmission time interval (TTI) duration.

[0133] 然后,可通过外部代码编码器传送编码器分组(EP),来生成奇偶行。 [0133] Then, the packet (EP) transmitted by the external code encoder encoder to generate parity row. 如下面将参照图9A更详细描述的那样,FEC层157可通过在UMTS陆地无线接入网(UTRAN) 20中提供Reed Solomon(RS)编码器的功能来执行外部编码,并可通过在用户设备(UE)IO中提供ReedSolomon解码器的功能来执行外部解码。 As described below with reference to FIG 9A, as described in more detail, the FEC layer 157 may be performed by providing an external Reed Solomon encoding 20 in the UMTS Terrestrial Radio Access Network (UTRAN) (RS) encoder functions, and a user equipment by providing ReedSolomon decoder (UE) IO functions to perform outer decoding.

[0134] 可把外部编码器生成的奇偶行加到编码器分组(EP)上,并可将其放在传送缓冲器中作为一组内部块。 [0134] The outer encoder can generate a parity lines to encoder packet (EP), the transfer buffer may be placed in a group as an internal block. 每个内部块具有加于其上的信息,以生成协议数据单元(PDU)。 Each inner block having information added thereto, to generate a protocol data unit (PDU). 然后可传送该组PDU。 Then the group may be transmitted PDU.

[0135] FEC层157还允许恢复属于单个EP的数据,即使从不同的小区接收到不同的内部块。 [0135] FEC layer 157 is also allowed to recover individual data belonging to the EP, even if received from different cells to different internal block. 这可通过在每个协议数据单元(PDU)的信头中传送序号(SN)而获得。 This may be obtained by transmitting the header of each protocol data unit (PDU) in the sequence number (SN). 在一个实施例中,系统帧号(SFN)能帮助维持数据相对于编码器分组(EP)的排列。 In one embodiment, a system frame number (SFN) to help maintain the arranged data with respect to an encoder packet (EP) of. 例如参照图IOA和IOB贯穿这篇文档,来更详细地讨论序号。 Referring to FIGS. IOA and IOB example throughout this document to discuss in more detail the serial number.

[0136] FEC层157还执行填充和重组;用户数据的传送;并执行上层PDU的按序传送,重复检测和序号检验。 [0136] FEC layer 157 further performs filling and recombination; transferring user data; and performing an upper layer sequence delivery of the PDU sequence number and duplicate detection test.

[0137] 在图6至7A中显示的实施例中,前向纠错(FEC)层157被显示在分组数据汇聚协议(PDCP)层156和无线链路控制(RLC)层150之间(例如,与(BMC)层在同一层,并在分组数据汇聚协议(PDCP)层下方)。 [0137] In the embodiment shown in FIGS. 6 to 7A, the forward error correction (FEC) layer 157 is shown between the Packet Data Convergence Protocol (PDCP) layer 156 and a radio link control (RLC) layer 150 (e.g. , and (BMC) layer under the same layer, and a packet data convergence protocol (PDCP) layer). 通过把前向纠错(FEC)层157刚好置于无线链路控制(RLC)层150上方,能最优化外部代码的性能,因为内部块大小与通过空中发送的分组的“黄金”分组大小相匹配。 By immediately before the layer 157 is placed over a radio link control (RLC) layer 150, forward error correction (the FEC), you can optimize the performance of the external code, because the "gold" packet size of the inner block size packet transmitted over the air phase match. 然而,应理解的是,在这里显示前向纠错(FEC)层,仅是为了说明而不是限制的目的。 However, it should be appreciated that the front shown here forward error correction (FEC) layer, for purposes of illustration only and not for purposes of limitation. 可在前向纠错(FEC)层157的顶部上使用分组数据汇聚协议(PDCP) 层156,以使用其信头压缩能力。 May be used to forward error correction (FEC) layer 157 on top of a packet data convergence protocol (PDCP) layer 156, using its header compression ability. 应注意的是,为使用专用逻辑信道的点对点(PTP)传输而定义当前分组数据汇聚协议(PDCP)层156。 It should be noted that the use of dedicated logical point (PTP) transmissions define the current packet data convergence protocol (PDCP) layer 156. 如图7B所示,可在无线链路控制(RLC)层上方的接入层内的任何位置或在应用层中提供前向纠错(FEC)层。 7B, the access may be anywhere within a radio link control layer (RLC) layer above the front or provided in an application layer forward error correction (FEC) layer. 前向纠错(FEC)层可在分组数据汇聚协议(PDCP)层的下方或上方。 Below or above the Forward Error Correction (FEC) layer (PDCP) layer in a packet data convergence protocol. 如果在应用层80执行FEC,则可把它相同地应用到GSM和WCDMA中,即使“黄金”分组大小对于这二者来说将会不同。 If perform FEC in the application layer 80, it may equally be applied to GSM and WCDMA, even if the "gold" for the packet size would be different for both.

[0138] 外部代码设计 [0138] Design of external code

[0139] 新的前向纠错(FEC)层能执行关于用户平面信息的外部编码。 [0139] The new outer encoding can be performed before the user plane information on forward error correction (FEC) layer. 图8是显示信息块91和外部代码块95以说明外部代码块结构的概念的图。 FIG 8 is a block outer code blocks 91 and 95 to illustrate a concept of external code block structure. 图9A是显示怎样能把外部代码块结构应用到多媒体广播和组播服务(MBMS)数据91中的实例的图。 FIG 9A is a diagram showing an example of how can the structure of the outer block 91 is applied to a multimedia broadcast multicast service (MBMS) data. 当在整个小区上广播容忍延迟的内容时,外部编码能改善物理层性能。 When the broadcast content tolerate delay in the entire cell, outer coding can improve the performance of the physical layer. 外部代码能例如帮助避免在小区间转换期间和在点对点(PTP)传输模式和点对多点(PTM)传输模式之间转换期间,数据的丢失。 External code can, for example, and help to avoid loss during switching between peer (PTP) and point to multipoint transmission mode (PTM) transmission mode during the transition between the cell data.

[0140] 外部代码块95可用包括k个协议数据单元91和Nk个奇偶行93的矩阵的形式来表示。 [0140] 95 of the outer block 91 and is available in the form of a matrix comprising parity rows 93 Nk k of protocol data units represented. 在外部块编码中,可通过经由分段、拼接和数据填充(包括把开销插到内部块中) 而把用户数据组织成k个净荷行,来把数据组装到大编码器分组或信息块91中,然后对得到的信息块91进行编码,以生成Nk个奇偶行93,它们可被加到信息块91中以生成外部代码块95。 In the outer block encoding, the user data may be organized via segment, stitching and filling data (including the overhead is inserted into an inner block) payload into k lines, to assemble the data packets or to large encoder block 91, then block 91 obtained by encoding to generate parity Nk rows 93, they may be added to the information block 91 to generate 95 outer code block. 奇偶块93把冗余信息加到信息块91中。 Parity blocks 93 redundant information added to the information block 91. 然后,外部代码块中的单个行最终可经过单个或多个传输时间间隔(TTI)被传送。 Then, a single row of the outer block may be subjected to the final single or more transmission time intervals (TTI) is transmitted. 协议数据单元(PDU)的集合的冗余信息能允许原始信息被重新构造,即使一些PDU在传输期间被丢失。 Protocol data unit (PDU) of the set of redundant information to allow the original information can be reconstructed, even if some PDU is lost during transmission.

[0141] 图9A显示了通称为Reed-Solomon (RS)块代码的示意性外部代码结构。 [0141] FIG 9A shows a schematic external code structure known as Reed-Solomon (RS) block code. Reed-Solomon(RS)代码可用于检测和纠正信道误码。 Reed-Solomon (RS) code can be used to detect and correct channel errors. 图9A中显示的外部代码是系统的(n, k)块代码,其中每个Reed-Solomon(!«)代码符号包括一字节由行和列定义的信息。 Outer code shown in FIG. 9A is a system block codes (n, k), wherein each Reed-Solomon (! «) Code symbols includes a byte of information defined by rows and columns. 每列包括Reed-Solomon(RS)码字。 Each column comprises a Reed-Solomon (RS) codewords. 如果将要恢复η个丢失的块,则至少需要η个奇偶块。 If you want to restore a lost η block, you need at least η parity blocks. 因而, thus,

19所需要的存储量随奇偶块数目的增加而增加。 Amount of memory 19 with the required number of parity blocks increases. 在Reed-Solomon (RS)编码中,可把N_k个奇偶符号加到k个系统符号上,以生成码字。 In the Reed-Solomon (RS) encoding, can be the parity symbols added N_k systems k symbols, to generate a codeword. 换句话说,Reed-Solomon(RS)代码的码字[N, k]具有k个信息或“系统”符号和Nk个奇偶符号。 In other words, the code word Reed-Solomon (RS) code [N, k] with k information or "system" Nk symbols and parity symbols. N是代码的长度,k是代码的维数。 N is the code length, k is the dimension of the code. 对于每k个信息字节,代码生成η个编码的符号,其前k个可与信息符号相同。 For every k information bytes, code generation η coded symbols, the same as with the first k information symbols. 可把每行称为“内部块”,其表示每传输时间间隔(TTI)的净荷。 Each row may be referred to as the "internal block", which indicates the payload per transmission time interval (TTI) of. 在常规的WCDMA系统中,传输可通过例如20ms帧(TTI)的基本WCDMA结构进行。 In a conventional WCDMA system, the transmission may be performed by, for example, 20ms frame (TTI) the basic structure of WCDMA. 使用如下定义的生成矩阵(ikXN,可从系统符号得到奇偶符号: Using a generator matrix defined as follows (ikXN, available parity symbols from symbol system:

[0142] Gixk - GkXN = c1XN (等式1) [0142] Gixk - GkXN = c1XN (Equation 1)

[0143] Hi1 xk =信息字=[Hiom1- · · Hik-J (等式2) [0143] Hi1 xk = information word = [Hiom1- · · Hik-J (Eq. 2)

[0144] ClXN =码字=[c。 [0144] ClXN = codeword = [c. Cl· ·· CnJ (等式3) Cl · ·· CnJ (Equation 3)

[0145] 其中HipCi属于任意feilois域。 [0145] wherein HipCi arbitrary feilois domain. 例如,如果Reed-Solomon (RS)码字的符号是比特, 则将使用2维的Galois域(GFQ))来描述解码操作。 For example, if the symbol Reed-Solomon (RS) code word is a bit, then the Galois field using a two-dimensional (GFQ)) described decoding operation. 在一个实施例中,如果符号是八位字节,则可使用256维的(ialois域GW256)来描述解码操作。 In one embodiment, if the symbol octets, dimension 256 may be used (ialois domain GW256) described decoding operation. 在这种情况下,每行的每个信息列由1字节组成。 In this case, each row of each column is composed by 1 byte. 可在256维的Galois域GF056)上使用[N, k]Reed-Solomon(RS)代码对每个信息列编码。 Can be used [N, k] Reed-Solomon (RS) code sequence for each information encoded on the Galois field 256 dimensions GF056). 如果每行有M字节,则外部块被编码M次。 If M bytes per line, the external coded block M times. 因此,每个外部块95有N*M字节。 Accordingly, each outer block 95 has N * M bytes.

[0146] 刪除解码 [0146] erasure decoding

[0147] 外部代码结构允许删除纠正。 [0147] external code structure allows the erasure correction. 如果解码器已知道哪些符号是错误的,则重新构造错误的系统符号需要相对小的计算量。 If the decoder has to know which symbols are incorrect, the system re-configured wrong symbols need a relatively small amount of calculation. 编码器分组(EP)或矩阵指的是在外部编码器的输出端的数据的整个集合。 Encoder packet (EP) or matrix refers to the entire set of data outputs of the outer encoder. 冗余信息按照列向从每行中被取出,并且被传送的每行具有附于其上的CRC,该CRC必须校验以确认数据已被正确地发送。 Redundant information is extracted from each row in columns, and each row is transmitted having attached thereto CRC, the CRC check to confirm that the data must have been correctly transmitted. 在MBMS传输的情况下,可在每个传输信道块中使用CRC,该CRC指示内部块91是否是错误的,并且如果CRC失败,则可假定块中的所有符号是错误的。 In the case of MBMS transmission, may be used in each transport channel block CRC, the CRC indicates an internal block 91 is erroneous, and if the CRC fails, the block may be assumed that all symbols are erroneous. 在一个实施例中,如果给定的内部块是错误的,则可删除用于该块的所有比特。 In one embodiment, if a given error is an internal block, the block can be deleted for all the bits. 术语“删除”指的是属于CRC失败的错误块的每个符号。 The term "remove" refers to a CRC failure of each symbol belonging to the error block. 可假定没有删除的符号是正确的。 Can not delete the symbol hypotheses is correct. 忽略CRC未检测到错误的概率,则每个NX 1列包含正确的和删除的符号。 CRC ignore the probability of error is not detected, NX 1 then each column contains the correct sign and deleted.

[0148] 接收到的向量r可写为: [0148] The received vector r can be written as:

[0149] r1XN = [c0 ee C3 C4 e C6 c8. . . Cn^1 ] (等式4) [0149] r1XN = [c0 ee C3 C4 e C6 c8... Cn ^ 1] (Equation 4)

[0150] 其中e标识删除。 [0150] wherein e identification deleted.

[0151] 删除解码允许纠正最高到Nk个错误符号。 [0151] erasure decoding to correct up to allow Nk wrong symbols. 因为可把没有删除的符号假定为正确的,所以RS码的纠错性能通常比典型的RS码的纠错性能好得多。 Can not deleted because the symbol is assumed to be correct, the error correction performance than the error correction of the RS code is generally typical RS code performance is much better. 在每个内部块中使用的CRC的大小应足够大,以确保未检测到的误码的概率不超过残余外部块概率。 Used in each inner block CRC size should be large enough to ensure that the probability of undetected error does not exceed the residual external block probability. 例如,如果在内部块中使用16位的CRC,则残余外部块误码率的下限将是=1.5· ΙΟ"50如果在前k 个内部块中没有误码,则不需要执行RS解码,因为系统符号和信息符号相同。 For example, if 16-bit blocks in the interior of the CRC, the lower limit of the residual outer block error rate will be = 1.5 · ΙΟ "50 If there is no error in the previous block internal k, performs RS decoding is not required, because the same information symbols and system symbols.

[0152] 可注意到的是,一旦接收到具有好CRC的k块,就能执行外部块的解码,而不需要等待所有N个内部块的接收。 [0152] It may be noted that once a block has k good CRC is received, the decoding can be performed outside the block, without having to wait for all N reception of the inner block. 为了执行删除解码,可通过去除所有与删除或不必要的块相对应的列,从生成矩阵Qxn得到改进的生成矩阵Qkxk,例如,可以仅使用前k个良好的接收到的符号,来标识改进的生成矩阵Qkxk。 To perform erasure decoding, block by removing all columns corresponding to remove unnecessary or, improved generator matrix Qkxk qxn generator matrix, for example, you may use only the first k symbols received well, to improve identification the generator matrix Qkxk. 可用如下方式恢复源信息字m: Available as restoration information source word m:

[0153] UPixfc]-1.心(等式5)[0154] 其中rlxk'是改进的接收到的用前k个好符号获得的向量。 [0153] UPixfc] -1. Heart (Equation 5) [0154] wherein rlxk 'is modified received vector by the first k symbols obtained good. 从而能把删除解码的复杂度降低到kXk矩阵求逆的复杂度。 In order to be able to delete the decoding complexity to reduce the complexity of kXk matrix inversion. 因此,RS删除解码的使用能极大地简化RS解码的计算复杂度。 Thus, RS erasure decoding can greatly simplify the use of the computational complexity of the RS decoding.

[0155] 数据打包对外部代码件能的影响 Effects of the external code member can be [0155] the data package

[0156] 如下面将参照图11-13讨论的那样,如果通过空中发送的填充和开销的量由特定的外部编码方案限制,则外部编码可与可变速率数据源共同使用,而不导致过大的开销。 [0156] As discussed below with reference to FIGS. 11-13 above, if the filling amount of overhead and transmitted over the air, the outer-coding may use a variable rate data source by a specific external common coding scheme limits without resulting in excessive large overhead. 在上面讨论的外部代码方案中,可把数据打包成给定大小的块,并且可在这些块上操作缩短的ReedSolomon码。 The external code embodiment discussed above, the data may be packed into a given size to the block, and the operation can be shortened ReedSolomon code on these blocks. 可用至少两种将参照图9A和9B描述的不同的方式,把编码的分组数据打包到TTI中。 9A can be used with reference to at least two different ways and described in FIG. 9B, the packing encoder packet data to the TTI.

[0157] 图9B是显示图9A的外部代码块结构的图,其中每传输时间间隔(TTI)可发送多行。 [0157] FIG. 9B is a block diagram showing an external configuration of FIG. 9A, wherein each transmission time interval (TTI) may send multiple rows. 根据本发明的另一方面,来自一行的数据在单个TTI中被传送。 According to another aspect of the present invention, the data is transferred from one line in a single TTI. 在另一实施例中,来自一个编码器分组(EP)行的数据被放到一个TTI中,以便每个TTI包含来自那个编码器分组(EP)行的数据。 In another embodiment, data from an encoder packet (EP) is placed in a row TTI in each TTI so that contains data from the encoder packet (EP) row. 因而,能在单独的WCDMA帧或传输时间间隔(TTI)中传送每行。 Thus, the individual can WCDMA frames or transmission time interval (TTI) in each transmission line. 在一个TTI 中传送每行将提供更好的性能。 Transmitted in one TTI for each line will provide better performance. 在图9B中,k和η都除以每TTI的行数,并且行中的误码能全部相关联。 In FIG. 9B, k and η are divided by the number of rows per TTI, and the error row can all be associated. 当查看EP误码率与TTI误码率时,这会产生明显的不同。 When viewing TTI EP bit error rate and bit error rate, which would produce significantly different.

[0158] 图9C是显示图9Α的外部块结构的图,其中每行可在多个TTI中被发送。 [0158] FIG. 9C is a diagram showing a configuration of the external block 9Α, wherein each of the plurality of rows can be transmitted in a TTI. 应理解的是,虽然图9C图解了在四个ΤΤΙ(ΤΤΙ0-ΤΤΙ3)内发送了编码器分组(EP)的每行,但实际上可在任意数目的TTI内发送每行。 It should be understood that although FIG. 9C illustrates a transmission encoder packet in four ΤΤΙ (ΤΤΙ0-ΤΤΙ3) (EP) of each row, but each line may actually be sent in any number of TTI. 由于每列是外部代码码字,所以四个不同的传输“阶段”(ΤΤΙ0-ΤΤΙ3)中的每个“阶段”,相当于独立的外部代码。 Since each column external code is a codeword, the four different transmission "phase" (ΤΤΙ0-ΤΤΙ3) each "stage", it is equivalent to an independent external code. 为了恢复整个分组,有必要正确地解码所有这些独立的外部代码。 In order to restore the entire packet, it is necessary to correctly decode all of these independent external code.

[0159] 图IOA和IOB是显示由前向纠错层生成的外部代码块的图。 [0159] FIGS. IOA and IOB are graphs showing the outer block error correction generated by the front layer.

[0160] FECc模式可在公共或点对多点(PTM)逻辑信道上使用,以通过把奇偶行或块93加到MBMS净荷数据91上来构造外部条件块95。 [0160] FECc mode may be used on a common or multipoint (PTM) logical channels, through the parity block row 93 or 91 was added up MBMS payload data block 95 configured external conditions. 每个外部块95包括多个内部块91、93。 Each outer block 95 comprises a plurality of inner blocks 91, 93. 标识内部块的顺序和它们相对于编码器分组的位置,能允许把每个可用的内部块放在正确的位置上,以便能正确地进行外部解码。 Sequence identity inner blocks and their position relative to the encoder packet, to allow the interior of each available block in the right position, in order to correctly perform outer decoding. 在一个实施例中,每个内部块包括通过内部块编号m 和外部块编号η来标识内部块的信头94。 In one embodiment, each of the inner block includes a block number m by internal and external η block number identifying header block 94 inside. 例如,外部块η包括具有m个内部多媒体广播和组播服务(MBMS)净荷块的数据部分91,和具有M-(m+l)个内部奇偶块的冗余部分93。 For example, external block comprising data payload blocks η m having internal Multimedia Broadcast and Multicast Service (MBMS) portion 91, having M- (m + l) internal parity redundancy block portion 93. 根据这个实施例,可为MBMS最优化序号空间,并可用许多不同的序号来定义序号空间,例如, O至127。 According to this embodiment, it can be optimized for the MBMS sequence number space and can be defined in many different serial number space, eg, O to 127. 序号空间应该足够大,以便在由任何种类的转换导致的接收间隙后,相同的序号不会出现。 Sequence number space should be large enough so that the receiving gap of any kind of conversion due to the same number does not appear. 即使一些块被丢失,接收UE也应该能确定内部块的顺序。 Even if some blocks are lost, the receiving UE should be able to determine the order of the inner block. 如果UE丢失的内部块比可由整个序号空间标识的内部块多,则UE将不能正确地对内部块进行重新排序。 If the UE is missing an internal block number space of the entire inner block may identify more than, the UE will not correctly reorder inner block. 同一内部块的序号,对于FECd块和FECc块是相同的。 The same number of the inner block, and a block for FECd FECc blocks are the same. FECd块不包括FECc块中使用的冗余部分93。 FECd block does not include the redundant block portion 93 FECc used. FECd实体和FECc实体可使用相同的空中比特速率。 FECd FECc entities and entities may use the same bit rate air.

[0161] 传送端 [0161] transmitting end

[0162] 传送前向纠错(FEC)实体410包括用于接收SDU的服务数据单元(SDU)缓冲器412,分段和拼接单元414,执行Reed Solomon (RS)编码的外部编码器416,把序号加到被编码的PDU上的序号生成器418,通过逻辑信道406传送PDU的传送缓冲器420,和调度单元422。 [0162] transmitting a forward error correction (FEC) 410 includes a receiving entity SDU service data unit (SDU) buffer 412, segmentation and splicing unit 414 performs Reed Solomon (RS) coding an external encoder 416, the coded serial number added to the sequence number PDU generator 418, transmission buffer 406 through a logical channel transmitted PDU 420, and the scheduling unit 422.

[0163] 如箭头指示的,服务数据单元(SDU)缓冲器412以服务数据单元(SDU)的形式接收无线承载402上的用户数据(FEC SDU),并存储来自较高层的FEC SDU0接收缓冲器412 把将要传送多少数据通信给调度单元422。 [0163] As indicated by arrows, the service data unit (SDU) buffer 412 to the service data unit (SDU) received in the form of user data radio bearer (FEC SDU) on 402, and stores the FEC SDU0 reception buffer from a higher layer 412 how much data will be transmitted to the communication unit 422 scheduling.

[0164] 如上面讨论的,典型地,装满编码器分组(EP)所花费的时间量将是变化的,因为源数据速率通常是变化的。 [0164] As discussed above, typically filled with an encoder packet (EP) the amount of time it takes will vary, because the source data rate typically varies. 如参照图13说明的那样,通过灵活地决定何时开始打包数据, 能改进帧充满效率。 As explained with reference to FIG. 13, as, when to start flexibly determined by the packed data, can improve frame fill efficiency. 通过基于接收FEC实体430的抖动容限来尽可能延迟EP的生成,能减小引入的填充量。 FEC-based receiving entity 430 jitter tolerance as to delay generation of the EP can be reduced filling amount introduced.

[0165] 调度实体422能决定何时开始编码。 [0165] scheduling entity 422 can decide when to start encoding. 调度程序422最好基于用于那个特定服务的Qos策略,确定在分组需要被发送出之前可能要等待多长时间。 The scheduler 422 based on the best Qos strategy for that particular service, determined before the packet needs to be sent out may have to wait long. 一旦调度程序422确定已积累足够的数据,或已耗尽可接受的最大分组传送延迟,调度程序422就触发编码器分组(EP) 91的生成。 Once the scheduler 422 determines that sufficient data has been accumulated or depleted maximum acceptable packet transfer delay, the scheduler 422 triggers an encoder packet (EP) 91 is generated. 分段和拼接单元414把服务数据单元(SDU)分成各行,并生成长度指示符(Li)。 And splicing unit 414 segments the service data unit (SDU) into each row, and generates a length indicator (Li).

[0166] 调度单元422最好决定EP或协议数据单元(PDU)的最优行数,以便SDU恰好能装到这个数目的行(例如12行)中。 [0166] The scheduling unit 422 preferably determines the optimal number of rows EP or protocol data unit (PDU) so as to fit perfectly SDU to the number of rows (e.g., row 12) in the. 可选地,调度程序422从由RRC配置的那些大小中, 选择将导致最小可能填充的FEC PDU大小,并请求分段&拼接功能414把SDU格式化成大小为PDU_size-FEC_Header_size的k块。 Alternatively, the scheduler 422 from the size of those configured by the RRC, resulting in the smallest possible to select the FEC PDU size filler, and requests the segment SDU 414 & stitching formatted into k blocks of size PDU_size-FEC_Header_size. 这个格式化可变化。 The format may change. 下面将参照图12-13来讨论不同类型的格式化的实例。 Examples 12-13 below to discuss the different types of formatted with reference to FIG. 要考虑的数据总量应包括将由拼接和分段功能414加入的开销。 The amount of data to be considered include the cost function by stitching segments 414 and added. 为了生成编码器分组(EP),调度程序422请求拼接和分段功能414生成k个那个大小的PDU。 To generate encoder packet (EP), the scheduler 422 requests and stitching segments 414 function to generate the k-th size PDU. 这种大小规模包括重组信息。 Including the restructuring of this size scale information. 在一个实施例中,PDU可具有8比特的多倍的大小, 并且连续PDU的数据与码字中的不同符号相对应。 In one embodiment, the size of the PDU may have a multiple of 8 bits, and the data PDU and successive codewords corresponding to different symbols.

[0167] 然后,k个PDU块可通过执行Reed Solomon(RS)编码的外部编码器416。 [0167] Then, k may be a PDU block by performing Reed Solomon (RS) coding an external encoder 416. 外部编码器416通过生成冗余或奇偶信息并把冗余或奇偶信息附加到编码器分组(EP)矩阵中以生成外部代码块,来对编码器分组(EP)矩阵中的数据进行编码。 Outer encoder 416 encodes the data matrix to generate an external block to the encoder packet (EP) by generating redundant or parity information and the parity information to the additional redundancy or encoder packet (EP) matrix. 在一个实施例中,可假定外部代码是(n,k)删除解码块代码,并且外部编码器生成nk个奇偶块。 In one embodiment, the external code is assumed to be (n, k) erasure decoding block codes, and the external encoder generates nk parity blocks. 编码器在等长度的k行信息上执行编码,并将其传送给相同大小的低子层η协议数据单元(PDU)。 Η lower sublayer protocol data unit (PDU) performed on the encoding information encoder in the k rows of equal length, and transmits it to the same size. 前k个块与它接收的完全相同,接下来的nk个块对应于奇偶信息。 K identical blocks before it receives the next nk blocks corresponding to the parity information.

[0168] 调度程序422还监视时间对准或PTM流的相对定时,并执行传输以调整不同逻辑流的对准。 [0168] The scheduler 422 also monitors the time alignment or relative timing PTM stream, and performs transmission to adjust the alignment of different logical streams. 例如,在重新配置期间,可调整PTP和PTM逻辑流之间的时间对准,以有助于服务连续性。 For example, during reconfiguration, adjustable between PTP and PTM time alignment logic flows to facilitate the service continuity. 当这些流完全同步时,可获得最佳性能。 When these flows completely synchronized for optimum performance.

[0169] 不同的基站(或不同的传输模式PTP、点对多点(PTM))传送相同的内容流,但是这些流可能是未对准的。 [0169] disparate base station (or the PTP different transmission modes, the point to multipoint (the PTM)) transmit the same content stream, but these streams may not be aligned. 但是,如果数据流的编码器分组(EP)格式是相同的,则每个流上的信息是完全相同的。 However, if the encoded data stream of packets (EP) is the same format, the information on each stream are identical. 对每个外部块加序号允许用户设备(UE)组合这两个流,因为用户设备(UE)会知道这两个流之间的关系。 It allows for each external block sequence number plus a user equipment (UE) a combination of these two streams, because the user equipment (UE) may know the relationship between the two streams.

[0170] 序号生成器418用与在编码器416中用来生成PDU的顺序相同的顺序,把序号添加在每个块的前面。 [0170] Reference generator 418 by the same order as used in the encoder 416 generates a PDU sequence number is added to the front of each block. 在一个实施例中,序号生成器把例如8比特的序号加在每个外部代码块的前面,以生成PDU。 In one embodiment, the number generator, for example, 8-bit number added in front of each of the outer block to generate a PDU. 也可把附加开销信息加到外部代码块中。 The overhead information may also be applied to the external code block. 序号空间应该足够大,以容纳这些流之间的最差情况的时间差(time-difference)。 Sequence number space should be large enough to accommodate the worst case between the flow time difference (time-difference). 因此,在另一实施例中,可使用20的序号空间,在每个信头中至少可保留5比特用于序号。 Thus, in another embodiment, the sequence number space 20 may be used, may be retained for at least 5-bit number in each of the header. 在执行了Reed Solomon(RS)编码后,可把这个信头附加到外部代码块中,因此这个“外部”信头不受外部块的保护。 After performing Reed Solomon (RS) coding, this header may be attached to the outer code block, so that the "external" external header not protected block. 也最好为奇偶块加序号,即使不能传送它们。 It is also preferably plus parity block number, even though they can not be transmitted. 在一个实施例中,序号相位可与编码器分组边界对 In one embodiment, the number of the phase boundaries may be grouped with the encoder

22齐。 22 together. 序号的翻转将对应于新编码器分组的接收。 Inverting the received sequence number corresponding to a new encoder packet.

[0171] 前向纠错(FEC)信头格式 [0171] Forward Error Correction (FEC) header format

[0172] 如上面提到的,通过引入包括与PDU排序相关的信息的序号,能获得数据流的同步。 [0172] As mentioned above, by introducing the information including the serial number associated with the PDU ordering, synchronization of data flow can be obtained. 除重新排序和重复检测以外,序号允许来自包括在编码器分组中的各自源的数据被重新排列。 Other than duplicate detection and reordering, serial number allows data from sources including a respective encoder packet are rearranged. 这个序号能明确地标识每个分组应被考虑的顺序。 This number can clearly identify the order of each packet should be considered. 这个序号可组成“FEC头”,该“FEC头”在编码被执行后可同时被附加到信息净荷单元(PDU)和奇偶块。 This number can be composed of "FEC header", the "FEC header" After encoding is performed may be simultaneously attached to the payload information unit (PDU) and parity. 该序号不应受外部代码保护,因为它需要用于解码。 The external code number should not be protected, because it requires for decoding.

[0173] 图14是前向纠错PEC)头格式的实施例的图。 [0173] FIG. 14 is a forward error correction PEC) view of an embodiment of the header format. 为了便于具有编码器分组(EP)的数据的排列,可分割序号以包括保留部分(R) 402,标识EP的编码器分组(EP)部分(EPSN), 和标识特定内部块在编码器分组内的位置的内编码器分组(IEPSN)406。 In order to facilitate the arrangement of an encoder packet (EP) data can be split number to including a portion (R) 402, encoder packet identifier EP's (EP) portions (EPSN), and identify a particular internal block in the encoder packet the position of the encoder packet (IEPSN) 406.

[0174] 期望FEC层400能在所有无线链路控制(RLC)模式之间操作。 [0174] FEC layer 400 is desirable operable between all radio link control (RLC) mode. 由于无线链路控制(RLC) AM和无线链路控制(RLC) UM都要求服务数据单元(SDU)具有8比特的多倍的大小,所以期望FEC层400也符合这个要求。 Since the radio link control (RLC) AM and radio link control (RLC) UM requires service data unit (SDU) has a size a multiple of 8 bits, the FEC layer 400 is also desirable to meet this requirement. 因为用于FEC层400的外部代码以字节大小的数据增加量操作,所以编码器分组(EP)行的大小也需要是整数个字节。 Since the external code for FEC layer 400 to increase the amount of data byte size of the operation, so that the encoder packet (EP) size of the line also need to be an integer number of bytes. 因此,用于FEC协议数据单元(PDU)大小的FEC头大小401也应是8比特的多倍,以便可由无线链路控制(RLC)接受。 Thus, FEC header size for FEC protocol data unit (PDU) size 401 should also be a multiple of 8 bits, so as to receive by radio link control (RLC). 在一个实施例中,前向纠错(FEC)信头401可以是一字节,保留部分(R)402包括单个比特,标识EP的部分(EPSN) 404包括3比特,并且标识PDU在编码器分组内的位置的IEP 部分(IEPSN)406包括4比特。 In one embodiment, forward error correction (FEC) 401 may be a header byte, the remaining portion (R) 402 comprises a single bit, portion (EPSN) identified in EP 404 comprises 3 bits and identifies the PDU encoder IEP part position within the packet (IEPSN) 406 comprising 4 bits. 在这个实施例中,使用了8比特序号,因为期望每个TTI将发送一个PDU,并且因为不期望不同小区的传送定时的漂移超过100ms。 In this embodiment, a 8-bit number, since it is desirable to send each TTI a PDU, and since the transmission timing of different cells is undesirable drift more than 100ms.

[0175] 传送缓冲器420存储PDU直到积累了一帧数据。 [0175] PDU stored in the transmission buffer 420 until an accumulated data. 当PDU被请求时,传送缓冲器420 通过无线接口(Uu)经由逻辑信道,把帧逐个传送到MAC层。 When the PDU is requested, the transmission buffer 420, the frames one by one to the MAC layer via a logical channel transmitted via the radio interface (Uu). 然后MAC层经由传输信道,把PDU传递到物理层,在物理层,PDU可最终被传递给UE 10。 Then the MAC layer via a transport channel, transmitting the PDU to the physical layer, the physical layer, the final PDU may be transmitted to the UE 10.

[0176] 接收端 [0176] receiving end

[0177] 仍然参照图11,接收前向纠错(FEC)实体430包括接收缓冲器/重新排序/重复检测单元438,序号清除单元436,执行Reed Solomon (RS)解码的外部解码器434,和重组单元/服务数据单元(SDU)传送缓冲器432。 [0177] Still referring to FIG 11, a forward error correction (FEC) entity 430 comprises a reception buffer / reordering / duplicate detection unit 438 before the received sequence number clearing unit 436 performs Reed Solomon (RS) decoder 434 decodes the external, and recombinant unit / data service unit (SDU) transmission buffer 432.

[0178] EP矩阵的信息行对应于PDU。 [0178] EP matrix row information corresponding to the PDU. 为了支持外部编码,接收前向纠错(FEC)实体430 在触发外部解码之前,积累FEC PDU的序号。 To support external encoding, receiving the forward error correction (FEC) entity 430 before triggering the outer decoding, the accumulated number FEC PDU. 为了获得连续接收,尽管有对编码器分组进行解码的需要,但是用户设备(UE)在执行解码时,缓冲到来的协议数据单元(PDU)。 In order to obtain a continuous reception, despite the encoder packet to be decoded, the user equipment (UE) when performing decoding, buffering incoming protocol data unit (PDU).

[0179] 在接收到整个编码器分组(EP)之前,或在(未示出的)调度单元认为不再有用于编码器分组(EP)的重传之前,接收缓冲器438可积累PDU。 [0179] Prior to receiving the entire encoder packet (EP), or before (not shown) that is no longer the scheduling unit retransmitting an encoder packet (EP), the receive buffer 438 can accumulate PDU. 一旦决定对于给定的编码器分组,将不会再接收到数据,就可把丢失的PDU标识为删除。 Once the decision for a given encoder packet, will not receive the data, you can identify the missing PDU is deleted. 换句话说,在解码处理中,没有通过CRC检验的PDU将由删除替换。 In other words, in the decoding process, not by CRC check of PDU will be deleted replaced.

[0180] 由于在传输期间可能会丢失一些块,并且也由于不同的数据流可能具有不同的延迟,所以接收前向纠错(FEC)实体430在接收缓冲器/重新排序/重复检测单元438中,执行重复检测并可能对接收到的块执行重新排序。 [0180] Since some of the blocks may be lost during transmission, and also may have different delays due to different data streams, the reception in the reception buffer before the forward error correction (FEC) entity 430 / reordering / duplicate detection unit 438 , and may perform duplicate detection performed on the received block reordering. 可在每个FEC协议数据单元(PDU)中使用序号,以辅助重新排序/重复检测。 FEC can use the serial number in each protocol data unit (PDU) in order to assist reordering / duplicate detection. 可在接收缓冲器438中使用序号,以对接收到的无序的数据进行重新排序。 Reception buffer 438 can use the serial number to the received random data reordering. 一旦重新排序了PDU,重复检测单元就基于它们的序号,检测编码器分组(EP)中的重复PDU,并清除任何重复。 Once the reordering PDUs, duplicate detection unit on the basis of their sequence number, detector encoder packet (EP) duplicate PDUs, and remove any duplicate. [0181] 然后,可清除这些序号。 [0181] Then, the sequence number can be cleared. 序号清除单元436把序号从编码器分组(EP)中清除,因为序号不可以是发送给Reed Solomon(RS)解码器的块的一部分。 Reference number Clear Clear unit 436 from the encoder packet (EP), since the sequence number is not sent to a part of the block Reed Solomon (RS) decoder.

[0182] 然后可把数据传给外部解码功能434,以恢复丢失的信息。 [0182] Data may then be transmitted to the outer decoder 434 functions to recover lost information. 外部解码器434接收编码器分组(EP),并且,如有必要,Reed Solomon(RS)使用奇偶信息对编码器分组(EP)进行解码,以再生任何错误的或丢失的行。 Outer decoder 434 receives an encoder packet (EP), and, if necessary, Reed Solomon (RS) parity information using encoder packet (EP) decoding, to reproduce any errors or missing rows. 例如,如果所有k个包含信息的协议数据单元(PDU) 没有被正确接收,或η个PDU中少于k个的PDU没有被正确接收,则对于最多至奇偶PDU的大小的协议数据单元(PDU),然后可执行外部解码以恢复丢失的信息PDU。 For example, if all k Protocol Data Unit (PDU) containing information not correctly received, η, or in fewer than k PDU is a PDU has not been received correctly, then the protocol data units for up to the size of the parity of the PDU (PDU ), then perform external decoding to recover the lost information PDU. 不管何时执行外部解码,在接收器将可获得至少一个奇偶PDU。 Regardless of when to perform outer decoding, the receiver will receive at least one parity PDU. 如果所有k个包含信息的协议数据单元(PDU)被正确接收,或者η个PDU中少于k个的PDU被正确接收,则解码是没有必要的。 If all k Protocol Data Unit (PDU) containing information is received correctly, or fewer than k η th PDU is a PDU is received correctly, the decoder is not necessary. 然后可把信息协议数据单元(PDU)传送给重组功能432。 The information may then be protocol data unit (PDU) delivered to the reassembly function 432.

[0183] 与外部解码是否成功无关,随后可把信息行传送给重组单元/功能432。 [0183] regardless of whether an external decoding is successful, then the line can transmit information to the recombinant cells / 432 function. 重组单元432使用长度指示符(Li),来重组或重新构造来自编码器分组(EP)矩阵的信息行的SDU。 Recombinant unit 432 using the length indicator (Li), or re-configured to recombinant SDU information line from the encoder packet (EP) matrix. 一旦把SDU成功地放在一起,服务数据单元(SDU)传送缓冲器432就通过无线承载440传送服务数据单元(SDU),以把SDU传送到较高层。 Once successfully put together the SDU service data unit (SDU) transmission buffer 432 transmits on the bearer 440 the service data unit (SDU) via wireless transmission to the SDU to a higher layer.

[0184] 在接收前向纠错(FEC)实体430处,使UE能把解码延迟不同逻辑流之间的时间偏移,可允许系统充分利用由于缺少逻辑流之间的同步而导致的可能存在的数据的无序接收。 [0184] In receiving the forward error correction (FEC) at the entity 430, so that the UE can decode delay time offset between different logical streams, allows the system to take advantage of synchronization may exist between the resulting lack of logic flow due the received random data. 这在越区切换期间以及在PTP和PTM之间的转换期间,使服务平稳。 During this handover and during transition between PTP and PTM, so that the smooth service. 将参照图15来讨论用于使UE能把解码延迟不同逻辑流之间的时间偏移的算法。 Discussed with reference to FIG. 15 for UE can decode algorithm time delay between different logical streams offsets.

[0185] 编码器分组(EP)诜项:固定或可变行大小 [0185] Encoder packet (EP) Shen entry: fixed or variable line size

[0186] FEC或外部代码实体对于何时能构造协议数据单元(PDU),具有灵活性,因为在每个传输时间间隔(TTI)不需要连续发送协议数据单元(PDU)。 [0186] FEC codes or external to the entity can be configured when the protocol data unit (PDUs), is flexible in that each transmission time interval (TTI) does not need to continuously transmit a protocol data unit (PDU). 这可导致更好的帧填满(frame-fill)效率和更小的填充(padding)开销。 This can lead to better fill frames (frame-fill) and a smaller filling efficiency (padding) overhead.

[0187] 如有需要,外部代码实体可在每个传输时间间隔(TTI)生成净荷。 [0187] If necessary, the external entity may generate the code payload in each transmission time interval (TTI). 可实时构造协议数据单元(PDU),因为可从较高层接收服务数据单元(SDU)。 Real-time configuration protocol data unit (PDU), as may be received from a higher layer service data units (SDU). 如果没有足够的数据构造协议数据单元(PDU),则RLC可添加填充。 If there is not enough configuration data protocol data unit (PDU), the RLC padding may be added.

[0188] 固定行大小的编码器分组(EP) [0188] a fixed row size encoder packet (EP)

[0189] 在解码SDU 201-204时,期望尽可能减小将被传送的填充的量。 [0189] When decoding SDU 201-204, desirable to reduce the amount of padding to be transmitted as much as possible.

[0190] 在一个实施例中,编码器分组(EP)矩阵205的行大小可以是固定大小。 [0190] In one embodiment, the encoder packet (EP) size of the matrix rows 205 may be a fixed size. 编码器分组(EP)矩阵205行大小的先验知识,可允许把数据排列回它们原来的配置。 Encoder packet (EP) size of the matrix of 205 rows priori knowledge may allow the data arrangement back to their original configuration. 因为将被发送的SDU 201-204的行大小是预先知道的,所以一接收到数据就可以开始传送,而不需要等待以查看有多少数据将被发送。 Because SDU line size will be sent 201-204 is known in advance, so one can start receiving the data transfer without waiting to see how much data will be sent.

[0191] 图12A显示了用于从数据单元201-204生成外部代码块214的解码处理的实例, 其中外部代码块214的行大小可以是固定的。 [0191] FIG. 12A shows an example of a block for generating an external code from the data decoding processing unit 214 201-204, wherein the outer code block 214 may be fixed row size. 在这个实例中,用户数据采用包括任意大小的比特块的多个服务数据单元(SDU) 201-204的形式,其中比特块的大小取决于特定应用(视频、语音等)。 In this example, the user data in the form of any size comprising a plurality of service data units of the block of bits (SDU) 201-204, wherein the bit size of the block depends upon the particular application (video, voice, etc.).

[0192] 为了能传送任意大小的FEC SDU,可在FEC级执行分段、拼接和填充。 [0192] FEC SDUs can be transmitted to any size, segmentation may be performed, stitching and the filling level in the FEC. 尽管拼接并不是严格必要的,但是缺少它会导致较高层数据吞吐量的显著下降。 Although stitching is not strictly necessary, but the lack of it can lead to a significant decline in higher-layer data throughput.

[0193] 较高层SDU 201-204可首先被格式化成固定的PDU大小。 [0193] a fixed first higher layer SDU 201-204 can be formatted into a PDU size. 在这个实施例中,分段/拼接功能生成可被指示给用户单元的固定大小的内部块。 In this embodiment, the segmentation / stitching generates an internal block may be indicated to the user of fixed-size unit. 在步骤220,这组内部块可被分 In step 220, the set of internal blocks may be divided

24段和拼接,以变成编码器分组矩阵205的一部分,该编码器分组矩阵205包括内部块,必要程度的填充208,和长度指示符(Li) 206,该长度指示符206可用于通过指示出有多少SDU 在EP的给定行结束,来指出服务数据单元(SDU) 201-204的结束位置。 24 segments and splice, to become part of the matrix encoder packet 205, the packet encoder 205 includes an internal block matrix, the necessary degree of filling of 208, and a length indicator (of Li) 206, the length indicator 206 may be used to indicate by the number of rows in a given SDU EP's end, to indicate the end position of the service data unit (SDU) 201-204 of. 下面讨论的外部编码器,使用这些内部块来生成冗余块。 External encoder discussed below, these internal blocks using redundancy block is generated.

[0194] 在无线链路控制(RLC)中,长度指示符(Li)指示出每个服务数据单元(SDU)的结束位置,其中每个服务数据单元是相对于协议数据单元(PDU)而不是服务数据单元(SDU) 被标识的。 [0194] Radio Link Control (RLC), a length indicator (Li) indicating an end position of each service data unit (SDU), wherein each service data unit is a protocol with respect to data unit (PDU) instead of service data unit (SDU) to be identified. 这有助于减小开销,因为PDU大小通常小于服务数据单元(SDU)的大小。 This helps to reduce the overhead, since PDU size is usually less than service data unit (SDU) size. 例如, 长度指示符(Li)可用于指示出在净荷数据单元(PDU)内结束的每个FEC服务数据单元(SDU)的最后一个八位字节。 For example, the length indicator (Li) can be used to indicate each FEC service data unit (SDU) in the payload data unit (PDU) of the end of the last octet. 可把“长度指示符”设成,在FEC头的末端和最高到FEC SDU 段的最后一个八位字节之间的八位字节的数量。 It may be the "Length Indicator" is set to the number of octets between the end of the FEC header and up to the last SDU segment FEC octet. 长度指示符(Li)可完全包括在该长度指示符(Li)所指的PDU中。 Length Indicator (Li) may be fully included in the PDU Length Indicator (Li) referred to in. 换句话说,长度指示符(Li)最好指同一净荷数据单元(PDU),并且最好和该长度指示符(Li)所指的FECSDU的顺序相同 In other words, the length indicator (Li) is preferably refer to the same payload data units (PDUs), and preferably FECSDU sequence and the length indicator (Li) within the meaning of the same

[0195] 当接收到外部块时,可使用诸如长度指示符(Li)的信息,来让接收器知道服务数据单元(SDU)和/或填充开始和结束的位置。 [0195] Upon receiving the external block, may use information such as the length indicator (Li), and to let the receiver know the service data unit (SDU) and / or the filling start and end positions.

[0196] 由于不可能在FEC头中用1比特来指示长度指示符(Li)的存在,所以FEC层在净荷内添加指示长度指示符(Li)的存在的固定的头。 [0196] Since it is impossible in the FEC header with a length indicator bit to indicate the presence of (Li), it adds a fixed layer FEC header length indicator indicating the presence (Li) in the payload. 内部的头或LI提供重新构造SDU 201-204所需要的所有信息。 LI provided inside the head or reconstruct all the information needed SDU 201-204. LI可包括在它所指的RLC-PDU中。 LI may be included in RLC-PDU in which it refers. 第一LI的存在可由包括在RLC-PDU的序号头中的标签指示。 LI may include a first label indicating the presence of the RLC-PDU of sequence number header. 每个LI中的比特可用于指示其扩展。 Each bit in the LI can be used to indicate its extension. 为了允许长度指示符(Li)的长度随FEC PDU的大小而改变,可为一字节的长度指示符(Li)引入新特殊值,以指示出先前结束的SDU缺少一字节来装满最后的PDU。 To allow the length indicator (Li) with the FEC PDU size is changed, the introduction of new special value is a byte length indicator (Li), to indicate the end of the previous lack of a SDU filled last byte the PDU. 长度指示符(Li)存在比特可用各种方式实现,其中的两种将在下面讨论。 Length Indicator (Li) of bits available for the presence of various ways, two of which will be discussed below.

[0197] 在一个实施例中,可在每个协议数据单元(PDU)中提供长度指示符(Li)存在比特。 [0197] In one embodiment, the length indicator may be provided in each protocol data unit (PDU) in (Li) of bits exist. 例如,可在每个编码器分组(EP)行的开头部分添加一字节,并且在那个字节中的一比特指示LI的存在。 For example, each encoder packet (EP) was added at the beginning of a byte of the line, and a bit in the byte that indicates the presence of the LI. 可为这个“存在比特”保留每个协议数据单元(PDU)的整个第一字节。 The first byte may be the entire "presence bits" for each reservation protocol data unit (PDU) of. 为了容纳这个存在比特,长度指示符数据可缩短一比特。 To accommodate this bit exists, a length indicator bit data can be shortened. 在每个小型单元(PDU)中提供存在比特,允许在EP解码失败时甚至在第一PDU丢失时解码SDU。 Providing the presence of small bits in each unit (PDU), allowing decoding even when the first SDU when the PDU is missing in EP decoding fails. 这可导致更低的残余误码率。 This can lead to lower residual error rate. 在每个PDU中提供存在比特,还允许实时的拼接/分段。 Present bit provided in each PDU, also allows real-time stitching / segment.

[0198] 在另一实施例中,可在第一PDU中提供长度指示符(Li)存在比特。 [0198] In another embodiment, the length indicator may be provided in the first PDU (Li) of bits exist. 代替把开销加在每个PDU的开头部分,而是可把用于所有k个信息PDU的存在比特加在EP的第一个PDU 的开头部分。 Instead of the overhead added at the beginning of each PDU, but may be used at the beginning of the presence of all the k information bits plus PDU is the first PDU in the EP. 在编码器分组(EP)的开头部分提供存在比特,导致在具有大SDU和/或小PDU时的更小的开销。 At the beginning of the encoder packet (EP) exists to provide a bit, resulting in a large SDU and / or a smaller overhead small PDU.

[0199] 在分段和拼接后,EP 205包括许多由多个服务数据单元(SDU) 201-204中的至少一个和填充块占据的行。 [0199] After the segmentation and stitching, EP 205 includes a plurality of rows by a plurality of service data units (SDU) and at least one filler block occupied 201-204. 可设计外部块的行大小,以便每行能在一个传输时间间隔(TTI) 期间以峰值数据速率被传送。 During external feasible sized blocks, so that each line can be in one transmission time interval (TTI) is transmitted at the peak data rate. 具有在传输时间间隔(TTI)期间发送的数据量的服务数据单元(SDU)通常不能被排列成行。 Having an amount of data transmitted during a transmission time interval (TTI) service data unit (SDU) normally can not be arranged in rows. 因此,如图11所示,第二和第四SDU 202、204分别不适合EP的第一和第二行的传输时间间隔(TTI)。 Thus, as shown in FIG 11, the second and fourth SDU 202,204 are not suitable for the transmission time of the first and second rows of EP interval (TTI). 在这个实例中,EP具有12行可用于数据,并且可把四个SDU 201-204分组到这12行的前三行中。 In this example, EP 12 having a data line can be used, and may be grouped into the four SDU 201-204 that the first three rows 12 rows. EP 205剩余的行可由填充块208占据。 EP 205 remaining lines occupied by the spacer 208. 这样,可把第二SDU 202分割,以便第二服务数据单元(SDU) 202的第一部分在“信息块”的第一行开始,并且第二SDU 202的第二部分在第二行中结束。 Thus, the second SDUs 202 may be divided, so that the second service data unit (SDU) of the first portion 202 of the beginning of the first line "information block," and the second portion of the second end of the SDUs 202 in the second row. 类似地,第三SDU必须被分割,以便第三服务数据单元(SDU) 203的第一部分在第二行开始,并且第三SDU 203的第二部分在第三行中结束。 Similarly, the third SDU must be split, so that the third service data unit (SDU) of the first portion 203 of the beginning of the second line, and the second end portion of the third SDU 203 in the third row. 第四服务数据单元(SDU) 204装在第三行内,并且第三行的剩余部分可用填充块208充满。 The fourth service data unit (SDU) 204 mounted in the third row, the third row and the remaining portion of the block 208 may be filled with full. 在这个实例中,编码器分组(EP)213主要由填充208组成。 In this example, an encoder packet (EP) 213 208 composed mainly of filler.

[0200] 编码器使用EP生成冗余或奇偶信息。 [0200] EP encoder uses redundant or parity information generated. 在步骤S240,编码器对通过添加外部奇偶块214而被编码的中间分组矩阵205进行编码,以生成长度为16块的外部代码块213。 In step S240, the encoder of the intermediate by adding outer parity block 214 is encoded packet encoding matrix 205 to generate a length 16 of the outer block 213. 编码器从每个块的每列中提取8比特数据,以生成作为结果的数据210。 The encoder extracts from the 8-bit data in each column of each block to generate resultant data 210. Reed S0l0m0n(RS)编码器对作为结果的数据210编码,以获得四行冗余或奇偶信息212。 Reed S0l0m0n (RS) encoder 210 for encoding the data as a result of redundancy or four rows to obtain the parity information 212. 奇偶信息212可用于生成外部奇偶块214,外部奇偶块214可被附加到EP矩阵205以生成16块外部代码块213。 The parity information 212 may be used to generate an external parity block 214, the external parity block 214 may be attached to EP matrix 205 to generate 16 outer code block 213.

[0201] 图12B显示了在上面讨论的实例中通过空中传送的信息的实例。 [0201] FIG 12B shows an example of information transmitted over the air in the example discussed above. 在步骤S260,在把包括序号的附加开销加到EP 205的每行后,16块外部代码块213可作为协议数据单元(PDU) 214,通过空中被传送。 In step S260, the number comprising the following additional overhead added to each row of EP 205, 213 of the outer block 16 as protocol data unit (PDU) 214, it is transmitted through the air. 全部或整个编码器分组(EP) 213矩阵不在下行链路上发送的协议数据单元(PDU)214中被传送。 All or overall encoder packet (EP) 213 matrix protocol data unit (PDU) transmitted on the downlink is not transmitted by the link 214. 而是,协议数据单元(PDU)包括信息比特201-204和编码器分组(EP)矩阵213的长度指示符(Li) 206。 Instead, the protocol data unit (PDU) 201-204 includes information bits and encoder packet (EP) matrix 213, a length indicator (Li) 206. 由于编码器分组(EP) 213的行大小是固定的,因此这在接收器是已知的,所以没有必要通过空中实际地传送填充208。 Since the encoder packet (EP) size of 213 rows is fixed, so it is known at the receiver, it is not necessary actually transmitted over the air 208 is filled. 填充信息208 不在下行链路上传送,因为填充值是已知的,因此没有必要传送填充信息208。 Padding information 208 is not transmitted over the downlink link, as padding values ​​are known, there is no need to transport padding information 208. 例如,如果填充可由已知的比特序列组成,诸如由全0、全1或0和1交替结构的比特序列组成,则接收器可把协议数据单元(PDU) 214最高填充到标准编码器分组(EP)213的行长度。 For example, if the filling can be composed of known bit sequence, such as the all-zero, or a whole sequence of bits 0 and 1 are alternately composition structure, the receiver may the protocol data unit (PDU) 214 filled up to a standard encoder packet ( EP) 213 of the line length. 因此,在传送期间,代替选择等于EP行大小的PDU大小,可使用传送所有信息比特201-204和重组开销206 (例如Li)的可获得的最小EP大小。 Thus, during the transfer, instead of selecting the size of the PDU is equal to the size of the EP-line, may be used to transmit all information bits recombinant overhead 206 and 201-204 (e.g. Li) EP minimum size achievable.

[0202] 尽管编码器矩阵行大小是固定的,但是在每次传输时可从给定集合中选择FEC PDU大小,以便每个FEC PDU包括单个编码器矩阵行(填充可被排除)的所有信息部分。 [0202] While the encoder matrix row size is fixed, but may be selected from a given FEC PDU size set at the time of each transmission, so that each FEC PDU comprises all information for a single row of the matrix encoder (filler may be excluded) of section. 当接收到大小小于编码器矩阵行大小的PDU时,UE可用已知比特序列最高填充到那个大小。 When receiving a size smaller than the size of the encoder matrix row PDU, UE using known bit sequence to fill up to that size. 这允许内部块大小保持固定,而不增加空中接口的负荷。 This allows the internal block size remains fixed, without increasing the load of the air interface. 因此,使用固定行大小的编码器分组(EP) 213能消除在开始传送协议数据单元(PDU)之前一直要等待所有数据可获得的必要,还能消除发送填充的必要。 Thus, using a fixed line size encoder packet (EP) 213 can be eliminated before starting the transfer protocol data unit (PDU) to wait for all the necessary data have been available, but also eliminate the need to send filler.

[0203] 如果实现上面的算法来处理可变速率传输,则可使用速率均衡方案,在速率均衡方案中所有编码器分组矩阵行具有不变的大小。 [0203] If the above algorithm to achieve the variable rate transmission process, use rate equalization scheme, at a rate equalization scheme for all encoder packet matrix row having the same size. 当填充组成了部分PDU时,可使用更小的PDU0填充可由特定的比特序列组成,并可恰好位于数据的末端。 When filling up the PDUs part, it can be filled using less PDU0 by a specific bit sequence of, and just at the end of the data. 在接收器,从低层接收的块的大小可通过在末端附加填充而等于基线(base-line)大小。 At the receiver, the size of the block received from the lower end of the additional padding may be equal to the baseline (base-line) by size.

[0204] 如果预定的比特序列可用于填充,则这个填充不通过空中传送。 [0204] If the predetermined sequence of bits can be used for filling, the filling is not transmitted through the air. 接收器不需要知道实际的编码器分组行大小,除非接收器需要进行外部解码。 The receiver does not need to know the actual line encoder packet size, the outer decoder is required unless the receiver. 基本SDU重组不需要知道在PDU末端的填充量。 SDU recombinant basic need to know the amount of the filling end of the PDU. 如果接收到包含来自前k个编码器分组(EP)行的信息的所有PDU,则外部解码是不必要的。 If the received PDU contains all the information of the previous k encoder packet (EP) from the line, the outer decoding is unnecessary. 相反,如果至少一个包含来自前k个编码器分组(EP)行的信息的PDU 被丢失了,则需要至少一个包含来自奇偶行的数据的PDU。 Conversely, if at least one former comprises k from encoder packet (EP) PDU information line is lost, it comprises at least one PDU from the data parity row. 由于通常不填充奇偶行,所以大小可用作需要假定的实际编码器分组大小的参考。 Since generally does not fill even lines, the size of the assumed need to be used as actual encoder packet size reference.

[0205] 可变行大小的编码器分组(EP) [0205] Variable line size of an encoder packet (EP)

[0206] 图13显示了用于生成具有可变行大小的外部代码块313的编码处理。 [0206] Figure 13 shows a coding process for generating outer code blocks of variable sizes 313 rows.

[0207] 本发明的这个方面涉及通过空中接口传送的数据的灵活的外部块编码。 This aspect [0207] The present invention relates to a flexible external block coding the data transmitted over the air interface. 这种编码处理导致更少填充被传送,以便增加帧充满效率。 This encoding process resulting in less filled is transmitted, so as to increase the efficiency of full frame. 编码器分组(EP) 305的行可以是可变大 Encoder packet (EP) line 305 may be variable large

26小的,并且在每个传输时间间隔(TTI)可发送不同大小的外部块。 26 small, and in each transmission time interval (TTI) may send an external blocks of different sizes. 编码器分组(EP) 305的行大小最好是变化的,以便SDU恰好装入编码器分组(EP)矩阵305的数行(例如12行)中。 Encoder packet (EP) size of the line 305 is preferably varied to SDU exactly charged encoder packet (EP) matrix of 305 rows (e.g., row 12) in the. 在这个实施例中,FEC层在构造EP之前,必须等待所有的数据可得,以便FEC层可确定最佳行大小。 In this embodiment, FEC layer before EP configuration, must wait for all the data available to determine the optimal FEC layer may row size. 行大小可基于可得的数据量从许多不同的大小中选出,以限制填充。 Line size may be selected from a number of different sizes based on the amount of data available to fill limit. 可把编码器分组(EP)的行大小链接到为S-CCPCH配置的PDU大小的集合。 May be the encoder packet (EP) size of the row is linked to a set of S-CCPCH configuration of the PDU size. 根据在编码器分组305需要被生成时可得的数据量,可选择导致最小填充的行大小。 The packet encoder 305 when the amount of data available to be generated, resulting in the smallest size of the row select filled. 通过减小外部块313的大小以便每帧中的块大小可以更小,能以降低的传输速率发送数据,因为在相同的TTI持续时间内发送更少的数据。 , Can transmit data at a reduced transmission rate by reducing the size of the outer block 313 to the block size in each frame may be smaller, since less data transmission duration in the same TTI. 使用可变行大小的编码器分组(EP) 305,有助于稳定对所有用于编码器分组(EP)的传送的功率要求,并且还使用更少的奇偶开销314。 Using a variable row size encoder packet (EP) 305, to help stabilize the power requirements for all transport encoder packet (EP) of, and also uses less parity overhead 314. 这个实施例在诸如WCDMA 的系统中对点对多点(PTM)传输很有用,在WCDMA系统中,下层的无线协议允许在每个传输时间间隔(TTI)中发送的传输块的大小是可变的。 This embodiment of the point to multipoint (PTM) transmission in a system such as is useful in WCDMA, in a WCDMA system, the underlying wireless protocol allows the transport block size is transmitted in each transmission time interval (TTI) is variable of.

[0208] 在步骤320,可分段和拼接多个服务数据单元(SDU) 201-204,以生成编码器分组(EP)矩阵305,其中长度指示符(Li) 206可用于指出服务数据单元(SDU) 201-204的结束位置。 [0208] At step 320, may be segmented and splice the plurality of service data units (SDU) 201-204, to generate the encoder packet (EP) matrix 305, wherein the length indicator (Li) 206 may be used to indicate that the service data units ( SDU) ending position 201-204. 长度指示符(Li)可包括在最后一行中,每个服务数据单元(SDU)终止在最后一行中。 Length Indicator (Li) may be included in the last row, each service data unit (SDU) terminates in the last row.

[0209] 在步骤330,通过从每个数据块中提取8比特数据,冗余或奇偶信息被逐列地生成,并且作为结果的数据310可被发送给Reed Solomon(RS)编码器,以获得奇偶信息312。 [0209] In step 330, 8-bit data by extracting from each data block, redundancy or column by column parity information is generated, and as a result data 310 may be sent to a Reed Solomon (RS) encoder to obtain parity information 312. 由于编码器分组(EP)矩阵305的行更小,所以可生成更少的冗余信息。 Since the encoder packet (EP) matrix of 305 rows of smaller, less redundant information can be generated.

[0210] 在步骤340,编码继续进行,由于奇偶信息312被用于生成外部奇偶块314,外部奇偶块314可被附加到12块编码器分组(EP)矩阵305,从而生成在这个实例中长度为16块的外部代码块。 [0210] 340, encoding continues at step, since the parity information 312 is used to generate an external parity block 314, parity block 314 may be externally attached to 12 encoder packet (EP) matrix 305, thereby generating in this example the length to the outer code blocks 16. 这个实施例避免了填充的传送,这改善了传送效率,因为整个外部代码块313由SDU、长度指示符(Li) 206和/或冗余信息314占据。 The embodiments avoid transmission of padding, which improves transmission efficiency, because the whole of the outer block 313 is occupied by the SDU, / or redundant information length indicator (Li) 206 and 314. 在这个特定实例中,不需要填充。 In this particular example, no filling. 然而,应理解的是,在一些情况下,由于PDU的被配置大小的数目将被限制,并且可需要一些填充,虽然要减小填充量。 However, it should be appreciated that, in some cases, since the number of the PDU size is configured to be limited and may require some filling, although the filling amount to be reduced. 这导致更高的帧充满效率,并且还可允许跨过整个编码器分组(EP)维持更恒定的功率。 This results in a higher efficiency of full frames, and may also allow the encoder across the entire packet (EP) maintain a more constant power. 这在使用功率控制方案的CDMA系统中是期望的。 This is desirable in the CDMA system using a power control scheme.

[0211] 尽管未示出,但是通过空中的PDU的传送将用类似于以上关于图12的步骤S260 讨论的方式来进行。 [0211] Although not shown, the PDU is transmitted through the air in a manner similar to the above embodiment about the step S260 of FIG. 12 discussed.

[0212] 图11是具有在无线链路控制(RLC)层上提供的RLC非确认模式(UM)+实体(RLC UM+)的外部编码或前向纠错(FEC)层400的实施例。 [0212] FIG 11 is a (UM) + outer coding entity (RLC UM +) or a Forward Error Correction (FEC) layer 400 Example RLC unacknowledged mode having provided on a radio link control (RLC) layer. 这里,位于无线链路控制(RLC)上方的FEC层执行成帧。 Here, it located in a radio link control (RLC) layer above the FEC framing performed.

[0213] 外部编码层400包括传送前向纠错(FEC)实体410,其通过无线接口(Uu)404经由逻辑信道406与接收前向纠错(FEC)实体430通信。 [0213] outer layer 400 comprises encoding, which is transmitted to the communication before correction (FEC) entity 410 via the radio interface (Uu) 404 via a logical channel 406 and receives the forward error correction (FEC) entity 430.

[0214] 重新排序/重复检测 [0214] reordering / duplicate detection

[0215] 图15是用于使移动台10能把解码延迟不同逻辑流之间的时间偏移的重新排序协议或算法。 [0215] FIG. 15 is a mobile station 10 can decode the protocol or reordering delay algorithms between different logic flow time offset.

[0216] 接收前向纠错(FEC)实体430使用序号来确定在EP矩阵内的给定PDU的位置。 [0216] received before to determine the position within the matrix of a given EP PDU sequence number to an entity 430 using error correction (FEC). 例如,一部分序号(PSN)识别PDU在编码器分组(EP)中的位置。 For example, a part number (PSN) to identify the position of the PDU encoder packet (EP) of.

[0217] 这个算法假定,在解码可被启动前,至多接收到来自两个编码器分组(EP)的数据。 [0217] The algorithm assumes that, before decoding can be started, receives data from up to two encoder packet (EP) of. 在下面的描述中,编码器分组(EPd)是按照次序下一个要被解码的编码器分组(EP),并且编码器分组(EPb)是正被缓冲的编码器分组(EP)。 In the following description, the encoder packet (EPD) in accordance with a sequence to be decoded next encoder packet (EP), and the encoder packet (EPb) is being buffered encoder packet (EP). 编码器分组(EPb)跟在编码器分组(EPd)之后。 After the encoder packet (EPb) with encoder packet (EPd). 需要全编码器分组传送时间来执行RS解码的UE实现方案,将需要进行双重缓冲,以便能解码连续分组。 Require full time encoder packet transmitted to a UE performing RS decoding implementation, will need to be double-buffered, in order to decode the consecutive packets. 因此,UE存储编码器矩阵的至少n+k个最大大小的行(k和η分别是信息行的数目和包括奇偶行的总行数)。 Thus, UE storing the encoded matrix at least n + k rows largest size (k and η are respectively the number of information comprises a total number of rows and row parity line). 具有更快解码引擎的UE能降低这个要求,尽管不低于η+1。 UE faster decoding engine can reduce this requirement, though not less than η + 1. 例如,如果UE具有超出基于其解码能力接收连续分组所需的一定量的缓冲器空间(XtraBffr),并且如果假定641cbpS的流,则在不增加计算要求的情况下把解码延迟100ms,将要求将缓冲器大小增加800字节。 For example, if the UE has received a certain amount exceeds the buffer space required for consecutive packets (XtraBffr) based on its decoding capability, and if it is assumed to flow 641cbpS, then without increasing the computational requirements of the decoding delay 100ms, will require 800 byte buffer size increase.

[0218] 在框1410,可确定是否接收到新前向纠错(FEC)协议数据单元(PDU)。 [0218] In block 1410, may determine whether the received forward error correction (FEC) Protocol Data Unit (PDU) before the new. 如果没有接收到新的前向纠错(FEC)协议数据单元(PDU),则处理在框1410重新开始。 If not received a new forward error correction (FEC) Protocol Data Unit (PDU), the process restarts at block 1410. 如果接收到了新的前向纠错(FEC)协议数据单元(PDU),则在框1420,可确定新的前向纠错(FEC)协议数据单元(PDU)是否属于按照次序将被解码的下一编码器分组(EPd)。 If the received new forward error correction (FEC) Protocol Data Unit (PDU), then at block 1420, may be determined prior to the new protocol data unit (PDU) belongs to the order to be decoded in forward error correction (FEC) an encoder packet (EPd).

[0219] 如果该前向纠错(FEC)协议数据单元(PDU)不属于按照次序将被解码的下一编码器分组(EP),则在框1421,可确定该前向纠错(FEC)协议数据单元(PDU)是否属于正被缓冲的编码器分组(El^b)。 [0219] If the former does not belong to the order to be decoded next encoder packet (EP), then at block 1421 it may be determined that the forward error correction (FEC) Forward Error Correction (FEC) Protocol Data Unit (PDU) protocol data unit (PDU) belongs being buffered encoder packet (El ^ b). 如果该前向纠错(FEC)协议数据单元(PDU)不属于正被缓冲的编码器分组(Ein3),则在框1440,可丢弃该协议数据单元(PDU)。 If the former not being buffered encoder packet (EIN3) forward error correction (FEC) protocol data units (PDUs), then at block 1440, may discard the protocol data unit (PDU). 如果前向纠错(FEC)协议数据单元(PDU)确实属于正被缓冲的编码器分组(Ein3),则在框1423,该协议数据单元(PDU) 可在相关位置被添加到EPb的缓冲器中。 If the first protocol data unit (PDU) does belong to a forward error correction (FEC) encoder being buffered packet (EIN3), then at block 1423, the protocol data unit (PDU) may be added to the buffer in the relevant position EPb in. 在框1425,可确定用于EPb的数据量是否超过了XtraBffr。 At block 1425, it may determine the amount of data exceeds a EPb XtraBffr. 如果在框1似6确定出用于EPb的数据量没有超过XtraBffr,则处理在框1410 重新开始。 If at block 6 is determined for a similar amount of data does not exceed EPb XtraBffr, then processing resumes at block 1410. 如果用于EPb的数据量超过了XtraBffr,则在框1428,传送实体试图传送来自EPd的完整的SDU。 If the amount of data for EPb more than XtraBffr, at block 1428, the transmitting entity attempts to transmit the complete SDU from EPd. 然后,在框1430,EPd的剩余部分可从缓冲器中清除,在框1434,EPb可被设成EPd。 Then, at block 1430, the remaining portion may EPd cleared from the buffer, at block 1434, EPb can be set to EPd.

[0220] 如果在框1420确定出前向纠错(FEC)协议数据单元(PDU)属于EPd,则在框1422, 协议数据单元(PDU)可在相关位置被添加到EPd的缓冲器中。 [0220] If it is determined that the former belongs to the EPd protocol data unit (PDU) Correction (the FEC), then at block 1422, a protocol data unit (PDU) may be added to EPd buffers at block 1420 in the relevant position. 在框1424,可确定缓冲器是否具有k个单独的用于EPd的PDU。 In block 1424, the buffer may be determined whether k PDU is used to separate the EPd. 如果缓冲器不具有k个单独的用于EPd的PDU,则在框1426,处理在框1410重新开始。 If the buffer does not have to separate the k-th PDU EPd, then at block 1426, the process starts at block 1410 again. 如果缓冲器确实具有k个单独的用于EPd的PDU,则在框1427,解码器为EPd执行外部解码,然后在框1428,传送实体试图传送来自EPd的完整的SDU0然后,在框1430,EPd的剩余部分可从缓冲器中清除,在框1434,Ein3可被发送给EPd。 If the buffer does PDU with k individual for EPd, then at block 1427, the decoder performs outer decoding to EPd, then at block 1428, the transmitting entity trying to transmit a complete SDU0 from EPd Then, at block 1430, EPd the remaining portion may be removed from the buffer, block 1434, Ein3 may be sent to the EPd.

[0221] 图16是显示当移动台在接收自小区A 99的点对多点(PTM)传输和自小区B99的另一点对多点(PTM)传输之间转换时,由移动台接收的外部代码块之间的时间关系的图。 [0221] FIG. 16 is a transition between when the mobile station (PTM) transmission and (PTM) transmission from another point-to-multipoint cell B99 is received from the cell A 99 and received by the mobile station outside FIG temporal relationship between the code blocks. 图16的一些方面在2002年8月21日提交的Grilli等人的美国专利申请US-2004-0037245-A1 和US-2004-0037246-A1 以及在2002 年5 月6 日提交的Willenegger 等人的美国专利申请US-2003-0207696-A1中有进一步的讨论,从而将它们全部引用作为参考。 Some aspects of Figure 16 in US patent August 21, 2002 filed Grilli et al application US-2004-0037245-A1 and US-2004-0037246-A1 and Willenegger in 2002 and other filed May 6 people U.S. Patent application US-2003-0207696-A1 are further discussed, so that they are fully incorporated by reference.

[0222] 所描述的情况假定某UMTS陆地无线接入网(UTRAN) 20和用户设备(UE) 10要求。 [0222] Suppose a case where the described UMTS Terrestrial Radio Access Network (UTRAN) 20 and a user equipment (UE) 10 requirements. 例如,如果UTRAN 20跨小区发送使用相同外部块编码的内容,则应在邻近小区中传送相同数据或净荷的块上使用相同的编号。 For example, if the cell cross-UTRAN 20 transmits content using the same outer block coding, it should be transmitted in neighboring cells using the same number on the same block or data payload. 具有相同编号的外部块用相对地时间对准的方式被传送。 External block with the same number with the opposite transmission time aligned manner. 跨小区的PTM传输的最大偏移(misalignment)由无线网络控制器(RNC) M控制。 Maximum offset PTM transmission across the cell (misalignment) M is controlled by a radio network controller (RNC). UTRAN 20控制跨小区的点对多点(PTM)传输上的延迟抖动。 UTRAN 20 across the control cell jitter on the transmission delay multipoint (PTM). UE 10应该能在下一外部块正被接收时对当前外部块进行解码。 UE 10 should be able to decode a current block when a next external external block is being received. 因此,UE中的缓冲器空间应该最好容纳至少两个外部块95A-95C,因为需要用于一个外部块的存储器来积累当前外部块。 Thus, the UE buffer space should preferably accommodate at least two external blocks 95A-95C, because of the need for an external memory block to block external current accumulation. 如果外部块处于 If the block is in external

28Reed-Solomon(RS)解码期间,存储器还应能积累“行”的内部块,以补偿在跨基站22的时间对准中的不精确性。 During the decoding 28Reed-Solomon (RS), also can accumulate inside the memory block "line", to compensate for inaccuracies in the cross station 22 aligned in time.

[0223] 在小区A 98中,在外部块η 95Α的传送期间,转换发生在第二内部多媒体广播和组播服务(MBMS)净荷块的传送期间。 During the [0223] 98 in the cell A, in the outer block transfer 95Α η, the conversion occurs during the transmission of payload blocks in the second inner Multimedia Broadcast and Multicast Service (MBMS). 斜线箭头96图解了用户设备(UE) 10从小区A 98到小区B 99的转换,斜线箭头96是非水平的,因为在转换期间经过了一些时间。 Hatched arrow 96 illustrates that the user equipment (UE) 10 from the cell B to cell A 98 converter 99, the non-horizontal hatched arrow 96, because during the transition some time has elapsed. 到用户设备(UE) 10到达小区B 99的时刻为止,第五块多媒体广播和组播服务(MBMQ净荷数据正被传送。因而,用户设备(UE)IO由于相应传送的时间偏移和转换期间经过的时间,丢失了第二至第四块。如果在小区B 99中接收到足够的块,则外部块η 95Α仍然可被解码,因为可使用奇偶块来重新构造丢失的块。 To a user equipment (UE) 10 arrives at the B 99 cell time, the fifth block multimedia broadcast multicast service (MBMQ payload data being transmitted. Thus, a user equipment (UE) IO transfer due to the time offset and the corresponding conversion elapsed time period, the second to fourth block is lost. If the received sufficient block 99 in cell B, the external block η 95Α still be decoded because the parity blocks may be used to reconstruct the missing blocks.

[0224] 随后,在外部块的传送期间,用户设备(UE) 10经历从小区B 99到小区A 98的另一次转换,该转换发生在外部块的第五内部多媒体广播和组播服务(MBMS) 净荷块。 [0224] Subsequently, during the transfer of the outer block, the user equipment (UE) 10 from the cells subjected to cell B 99 A 98 converts again, this conversion occurs in the outer block of the fifth inner Multimedia Broadcast and Multicast Service (MBMS ) payload blocks. 在这种情况下,在转换期间更少的内部块被丢失,并且仍然可恢复外部块。 In this case, during the transition is less internal block is lost, and still recoverable outer block.

[0225] 外部代码块的使用能帮助减小任何服务中断的可能性。 [0225] the outer code block can help reduce the possibility of any service interruption. 为了确保误码恢复有效, 应在每个传送路径上发送相同的块,这意味着应在每个传送路径上用相同的方式构造奇偶块。 In order to ensure effective error recovery, the same block to be transmitted on each transmission path, which means should be constructed with the same parity block on each transmission path. (多媒体广播和组播服务(MBMQ净荷块在每个路径上必定是相同的,因为它是广播传送)。在上面的应用层80执行前向纠错(FEC)有助于确保奇偶块在每个传送路径上完全相同,因为编码在前向纠错(FEC)层157中进行,从而对于每个外部块是相同的。相反,如果编码在低层进行,例如在独立的无线链路控制(RLC)实体152进行,则需要一些协调,因为奇偶块在每个传送路径中将是不同的。 (Multimedia Broadcast and Multicast Service (MBMQ payload blocks in each path must be the same, as it is broadcast transmissions). Helps ensure that the parity blocks in a forward error correction (FEC) 80 before performing the above application layer each conveyance path is identical, since the encoding for forward error correction (FEC) layer 157, so that for each outer block is the same. in contrast, if the encoding in the lower layer, for example, in a separate radio link control ( RLC) entity 152, require some coordination, because each parity block in the transmission path is different.

[0226] ΑΔΜ^Α (ptm) IL^M (PTP) mmm [0226] ΑΔΜ ^ Α (ptm) IL ^ M (PTP) mmm

[0227] 图17是显示当点对多点(PTM)传输和点对点(PTP)传输之间的转换发生时,由移动台10接收的外部代码块之间的时间关系的图。 [0227] FIG. 17 is a display when the point to multipoint (PTM) transmission and point to point (PTP) transition between the transmission occurs, FIG time relationship between the outer code blocks received by the mobile station 10. 图17中显示的方案应用到例如使用点对点(PTP)传输的系统,诸如WCDMA和GSM系统。 Embodiment shown in Figure 17 is applied to, for example, using point to point (PTP) transmission systems, such as WCDMA and GSM systems.

[0228] 本发明的一个方面涉及前向纠错,其通过在PTM传输期间把奇偶信息或块添加到内部MBMS “净荷”或数据块中。 [0228] An aspect of the present invention relates to error correction before, during PTM transmission by adding a parity block to the internal information or the MBMS "payload" or data block. 在PTM传输中传送的每个外部代码块包括,至少一个内部净荷块和至少一个内部奇偶块。 Each outer code block transmitted in PTM transmission comprises at least one inner payload blocks and at least one inner parity block. 外部代码块的纠错能力能显著地减小并往往会消除转换期间MBMS内容或“净荷”的丢失,该转换诸如当UE从一个小区移动到另一个时,或当在同一服务小区中MBMS内容的传送从PTM连接变成PTP连接时,或发生相反方向的改变时。 Error correction capability of the outer code block can be significantly reduced and tends to eliminate or lose the MBMS content during conversion "payload" of the converter, such as when the UE moves from one cell to another, or when the same MBMS service in a cell when transmitting content from a PTP connection is connected into PTM, or when changes in the opposite direction.

[0229] 如上面提到的,给定小区可使用PTP或PTM传输方案来传送到用户10。 [0229] As mentioned above, a given cell may be transmitted using the PTP or PTM scheme to transmit to the user 10. 例如,如果在小区内对服务的需求降到某阈值以下,则通常用PTM传输模式传送广播服务的小区,可选择建立专用信道并用PTP模式传送(仅传送给某用户10)。 For example, if the demand for services falls below a certain threshold value within a cell, it is usually transmitted by the broadcast service PTM transmission mode cell, and optionally establishing a dedicated channel transmission mode with PTP (10 transmits only to a user). 同样,通常在专用信道(PTP) 上把内容传送给各个用户的小区,可决定通过公共信道把内容广播给多个用户。 Also, typically the content to each user in a cell dedicated channel (the PTP), can be determined through the common channel to broadcast content to multiple users. 此外,给定小区可用PTP传输模式传送内容,而另一小区可以PTM传输模式传送相同的内容。 Also, a given cell transmit content available PTP transmission mode, while the other cell PTM transmission mode can transmit the same content. 当移动台10从一个小区移动到另一个时,或当小区内的用户数目的改变触发传输方案从PTP到PTM 改变时或发生相反方向的改变时,转换发生。 10 when the mobile station moves from one cell to another, or the transmission scheme is changed from the opposite direction when the PTP or PTM changes occur, transitions occur when the number of users within a cell change trigger.

[0230] 在外部块η 95Α的点对多点(PTM)传输期间,转换发生在第四内部多媒体广播和组播服务(MBMS)净荷块的传输期间。 During the [0230] η 95Α the multipoint (PTM) transmission in the external block transition occurs during the fourth payload blocks internal transmission of multimedia broadcast multicast service (MBMS). 斜线箭头101图解了用户设备(UE)从点对多点(PTM) 传输到点对点(PTP)传输的转换,斜线箭头101是非水平的,因为在转换期间经过了一些时间。 Hatched arrow 101 illustrates that the user equipment (UE) is transferred from the point to multipoint (PTM) to point (PTP) transmission of the converted, non-horizontal hatched arrow 101, because during the transition some time has elapsed. 当从PTM 101到PTP的转换发生时,空中比特速率保持近似相同。 When PTP to PTM 101 from the transition occurs, the air remains approximately the same bit rate. 典型地,点对点(PTP)传输具有小于百分之一的比特误码率(例如,在传输期间,在每100个净荷块中有一个或更少的误码)。 Typically, point to point (PTP) transmission with a bit error rate of less than one percent (e.g., during transmission, there is one or less error in each payload block 100). 相反,在点对多点(PTM)传输中,可假定更高的比特误码率。 On the contrary, the point to multipoint (PTM) transmissions, it may be assumed a higher bit error rate. 例如,在一个实施例中,基站每16个传输时间间隔(TTI)生成一次外部块,并且这些TTI中的12个可由净荷块占据,4个TTI可由奇偶块占据。 For example, in one embodiment, each base station 16 transmission time interval (TTI) generated once the outer block and those of a TTI 12 may be occupied by payload blocks, parity blocks 4 may occupy TTI. 可容忍的误码块的最大数目应为16(12基本块+4奇偶块)中的4个内部块。 The maximum tolerable number of error blocks should be 16 (12 + 4 parity blocks basic block) of the four inner blocks. 因而,可容忍的最大的块误码率将是1/4。 Thus, the maximum tolerable block error rate will be 1/4.

[0231] 当移动台从点对多点(PTM)传输转换101到点对点(PTP)传输时,某些内部块可能丢失。 [0231] When the mobile station 101 transmits the converted point to point (PTP) transmission from a point to multipoint (PTM), some internal blocks may be lost. 假定点对多点(PTM)传输和点对点(PTP)传输在物理层(Li)具有近似相同的比特速率,则PTP传输将允许MBMS净荷块的传输速率快于PTM传输,因为平均而言,被重传的块的百分比将典型地低于奇偶块的百分比。 Assuming multipoint (PTM) transmission and point to point (PTP) transmissions having approximately the same bit rate at the physical layer (Li), the PTP MBMS transmission allows the transmission rate is faster than the payload blocks PTM transmission, because on average, the percentage of the retransmitted block will typically be less than the percentage of parity blocks. 换句话说,点对点(PTP)传输典型地比点对多点(PTM)传输快得多,从统计上讲,奇偶块的数目比无线链路控制(RLC)重传(Re-Tx)的数目大得多。 In other words, Point to Point (PTP) transmission is typically faster than to-multipoint (PTM) transmission, statistically speaking, than the number of parity blocks Radio Link Control (RLC) retransmissions (Re-Tx) number It is much greater. 由于转换101是从点对多点(PTM)传输转换到典型地快得多的点对点(PTP)传输, 所以当用户设备(UE) 10转换101到点对点(PTP)传输时,多媒体广播和组播服务(MBMS) 净荷数据的第一块正被传送。 Since the conversion from converter 101 is point to multipoint (PTM) transmission is typically much faster to point (PTP) transmission, so when a user equipment (UE) 10 to convert 101-point (PTP) transmission, multimedia broadcast multicast service (MBMS) of a payload data being transmitted. 因而,相应传输的时间偏移和转换101期间经过的时间,都没有导致任何块的丢失。 Accordingly, the respective transmission time offset, and the elapsed time during transition 101, did not result in any loss of blocks. 因此,当从点对多点(PTM)传输移动到点对点(PTP)传输时,一旦PTP链路在目标小区被建立,就可以简单地通过从当前外部块的开头部分重新开始,来补偿丢失的净荷块。 Thus, when moving from the point to multipoint (PTM) transmission point to point (PTP) transmission, once the PTP link is established in the target cell, it can simply be restarted from the beginning by the external current block, to compensate for the missing payload blocks. 网络可通过从相同外部块的开头部分开始PTP传输,即以第一内部块开始传送,来进行补偿。 PTP transmission network by starting from the beginning of the block outside the same, i.e. begin transmitting to a first inner block, to compensate. 然后由于完整外部块的更快的传送,网络可恢复转换引入的延迟。 Since then a full outer faster transport block, network delay introduced by the conversion recoverable. 减小传输期间数据的丢失,减小了可由这种转换导致的MBMS内容传送的中断。 Reduce the loss of data during transmission, the MBMS content may be reduced due to the conversion of interrupt transfer.

[0232] 随后,在外部块n+2的PTP传输期间,用户设备(UE) 10经历到点对多点(PTM)传输模式的另一转换103。 Another [0232] Subsequently, in the outer block n-PTP transmission period + 2, the user equipment (UE) 10 subjected to the point to multipoint (PTM) transmission mode conversion 103. 在图12中,从点对点(PTP)到点对多点(PTM)的这种转换103,发生在外部块n+2的最后一个内部多媒体广播和组播服务(MBMQ净荷块。在这种情况下,除了最后一个内部块,外部块n+2中的许多内部多媒体广播和组播服务(MBMQ净荷块已被传送。典型地,FEC被使用在这种不能获得反馈的情况下。由于PTP传输使用专用信道,从而在反向链路上具有反馈能力,所以FEC的使用不是有益的。为了最小化或消除交叉转换中的数据丢失,UMTS陆地无线接入网(UTRAN) 20最好依靠PTP传输中RLC确认模式(AM)的低残余块误码率,来恢复在到PTM传输的转换期间可能被丢失的所有内部块。换句话说,普通层2重传可用于重传在源传输中被检测出误码的任何分组。因此,如图17所示,在PTP传输中不需要奇偶块。如果在点对点(PTP)传输期间在净荷块中有误码,则仍可解码外部块, 因为无线链路 In FIG. 12, from this point to point (PTP) to multipoint (PTM) converter 103, occurs on the last internal multimedia broadcast multicast service outer block n + 2 is (MBMQ payload blocks. In this case, except the last one inside the block, the block n + many internal external multimedia broadcast multicast service (MBMQ payload blocks have been transmitted. typically, the FEC is used in the case of such feedback can not be obtained in 2. Since PTP transmission using a dedicated channel, so as to have a feedback on the reverse link capacity, so use of FEC is not beneficial. in order to minimize or eliminate cross-converted data is lost, UMTS terrestrial radio access network (UTRAN) 20 preferably rely on PTP transmission RLC acknowledged mode (AM) is a low residual block error rate, to recover all the internal blocks during transition to the PTM transmission may be lost. in other words, the ordinary layer 2 may be used to retransmit the retransmission transmission source are any packet errors detected. Thus, as shown, no parity blocks in the PTP transmission 17. If (PTP) in error during transmission has a point in the payload block, the outer block may still be decoded because the wireless link 制(RLC)层将请求重传任何错误的块。即,当在PTP传输期间有误码时,移动台10或者请求重传(Re-Tx),或者当所有块正确时,不发生重传,并且可使用传输格式零(TFO)。外部编码最好在协议栈的层2中进行,以便每个内部块97的大小恰好装入一个传输时间间隔(TTI)中,因为这样可增强编码效率。 Ltd. (RLC) layer retransmission request any bad block. That is, when there is a transmission error during the PTP, the mobile station 10 or a request for retransmission (Re-Tx), or when all the blocks correctly, retransmission occurs , and may use a zero transport format (TFO). outer coding is preferably performed in the layer 2 protocol stack, the size of each inner block 97 so as to exactly load a transmission time interval (TTI), since this can enhance the encoding efficiency .

[0233] 如果前向纠错(FEC)外部编码在协议栈的上层进行,诸如在应用层进行,则奇偶块将被发送,而不管是哪种重传方案(点对点(PTP)或点对多点(PTM))。 [0233] If the first (FEC) outer coding is performed in an upper layer protocol stack to error correction, such as in the application layer, the parity block is to be transmitted, on whatever retransmission schemes (Point to Point (PTP) or point to multipoint point (PTM)). 因而,奇偶块也将被附加到点对点(PTP)传输中。 Thus, parity block also will be attached to point (PTP) transmissions.

[0234] 如上面提到的,在PTP传输中,奇偶块的使用不是必需的,因为更有效的重传方案可代替前向纠错来使用。 [0234] As mentioned above, in the PTP transmission, using the parity block is not necessary, because the former is more efficient retransmission scheme may be used instead of forward error correction. 由于奇偶块最好在PTP传输中不被传送,所以完整外部块的传送平均而言可比在PTM中快,假定相同的空中比特速率。 Since the parity block is preferably not be transmitted PTP transmission, so the average transmission complete external block in terms of the PTM than fast, assuming the same bit rate air. 这允许UE补偿由点对多点(PTM)到点对点(PTP)的转换导致的中断,因为可相对于PTM传输来预期PTP传输。 This allows the UE is compensated by the point to multipoint (PTM) to point (PTP) resulting from the changeover interrupted, as may be expected with respect to PTM transmission PTP transmission. 用户设备(UE) User equipment (UE)

30可通过结合(1)在新小区的中或在转换后的点对点(PTP)传输中接收的内部块,和(2)在旧小区中的或在转换前的点对多点(PTM)传输中接收的内部块,来正确地恢复外部块。 30 may (PTM) transmissions by combining (1) an internal block received in the new cell or point in the converted (PTP) transmission, and (2) in a point to multipoint or old cell before conversion inner blocks received, to correctly recover outer block. 用户设备(UE)可结合属于同一外部块的转换前接收的内部块,和转换后接收的内部块。 Internal block user equipment (UE) may be incorporated inside the block before the block belonging to the same external conversion of the received and converted received. 例如,用户设备(UE) 10可结合通过点对点(PTP)传输接收的外部块n+2中的内部多媒体广播和组播服务(MBMQ净荷块,和通过点对多点(PTM)传输接收的外部块n+2和奇偶块中的内部多媒体广播和组播服务(MBMQ净荷块。UMTS陆地无线接入网(UTRAN) 20可通过相对于PTM链路上的传输,对接收来自PTP链路的MBMS内容的所有用户稍微地“预期”外部块的传输,来方便这个处理。 For example, a user equipment (UE) 10 may be incorporated internal n + Multimedia Broadcast and Multicast Service (MBMQ payload blocks, and (PTM) transmission through the point to multipoint 2 receives the block transmissions received by the external point (PTP) of outer block n + 2 and parity of inner multimedia broadcast and multicast service (MBMQ payload blocks .UMTS terrestrial radio access network (UTRAN) 20 via PTM transmission on the link relative to the link for receiving PTP all users slightly MBMS content "expected" external block transmission, to facilitate this process.

[0235] 由于UTRAN相对于PTM传输来预期外部块的传输,所以从PTP到PTM的“无缝的” 转换是可能的。 [0235] Since the UTRAN with respect to PTM transmission in anticipation of transmitting an external block, the PTM to PTP from the "seamless" transition is possible. 结果,跨小区边界和/或诸如PTM和PTP的不同传输方案之间的MBMS内容的传送,也是“无缝的”。 As a result, cross-cell and / or transmit the MBMS PTM content between the PTP and the different transmission schemes, such as a boundary, it is "seamless." 这种“时间预期”,可用内部块的数目来表示。 This "expected time", the number of available internal blocks expressed. 当用户设备(UE)IO 转换到PTM传输时,即使在转换时间期间通信链路不存在,用户设备(UE) 10也能丢失最高到“时间预期”数目的内部块,而不损害MBMS接收的QoS。 When a user equipment (UE) IO converted to PTM transmission, even during the transition time the communication link does not exist, a user equipment (UE) 10 can lose up to "Expected Time" number of internal blocks, without impairing the received MBMS QoS. 如果UE在PTP中直接开始MBMS 接收,则UTRAN可在PTP传输的起点立刻应用“时间预期”,因为UTRAN 20能通过避免空内部块(TF 0)来缓慢地预期外部块的传输,直到预期达到要求的“时间预期”数目的内部块为止。 If the UE starts directly in the PTP MBMS reception, the UTRAN may use the PTP transmission immediately at the beginning of "expected time", since the UTRAN 20 is empty can prevent internal block (TF 0) is expected to be slowly transferred from the external block is expected to reach up to until the required number of "expected time" inner blocks. 从那点开始,UTRAN能保持恒定的“时间预期”。 From that starting point, UTRAN can maintain a constant "time expected."

[0236] 在点对多点(PTM)传输中,不能依靠在无线网络控制器(RNC)中可获得的UE特定反馈信息。 [0236] In point to multipoint (PTM) transmission, the UE can not rely on specific feedback information available in the radio network controller (RNC) in. 在点对点(PTP)传输中,UE 10能把在转换前被正确接收的最后一个外部块的编号,通知给RNC。 Point to point (PTP) transmission, UE 10 can last number of the external block is correctly received before the conversion, the notification to the RNC. 这应该适应于任何到PTP的转换(从PTM或从PTP)。 This should be adapted to any conversion to PTP's (from PTM or from PTP). 如果这个反馈不认为是可接受的,则UTRAN 20能估计在状态转换前最可能由用户设备(UE) 10接收的最后一个外部块。 If the feedback is not considered to be acceptable, the UTRAN 20 can be estimated before the last most likely state transition external block received by a user equipment (UE) 10. 这个估计可基于对不同的小区传输之间可预见的最大时间不精确性的认识, 并可基于在目标小区中当前正被传送的或即将被传送的外部块。 This estimate may be based on different cells of the transmission time of the maximum foreseeable inaccuracy understanding, and based on the target cell or in the external blocks currently being transmitted is going to be transmitted.

[0237] 可执行前向纠错(FEC),以便能恢复在转换期间丢失的任何块。 [0237] executable before forward error correction (FEC), in order to recover any lost during the conversion block. 这通过减小在转换期间内容会被丢失的可能性,产生“无缝”转换。 This is achieved by reducing the possibility during the transition content will be lost, resulting in a "seamless" transition. 这种方案假定从点对点(PTP)到点对多点(PTM)传输的转换发生在相同的外部块正从每个源被传送时,这典型地发生在相对于转换持续时间给定外部块的持续时间的情况中。 This assumed (PTM) converted from point to point (PTP) to multipoint transmission occurs at the same timing of the external block is transferred from each source, which typically occurs with respect to the duration of the conversion of a given external block the duration of the case.

[0238] UE 10中的存储量可与跨相邻小区的PTM传输的时间对准中的精确性折衷。 Compromise the accuracy of [0238] the amount of storage in the 10 UE may be aligned with the time span of the adjacent cells in PTM transmission. 通过放宽用户设备(UE)IO中的存储器要求,可增加PTMUTRAN 20传输的时间精确性。 By relaxing a user equipment (UE) IO of the memory requirements, the accuracy of the time of transmission 20 can be increased PTMUTRAN.

[0239] 图18是显示在来自无线网络控制器(RNC)A的点对点(PTP)传输和来自无线网络控制器(RNC)B的另一点对点(PTP)传输之间的转换或重新定位期间,由移动台接收的外部代码块之间的时间关系的图。 [0239] FIG. 18 is a point from the radio network controller (RNC) A is (PTP) transmission, and the other point from the radio network controller (RNC) B or conversion between transmission (PTP) during repositioning, FIG relationship between the external time code blocks received by the mobile station. 术语RNC可与术语“基站控制器(BSC)”互换使用。 The term RNC with the term "base station controller (the BSC)" are used interchangeably. 在“重新定位”期间,用户设备(UE) 10从由第一RNC AlM控制的区域中的内容流的点对点(PTP)传输, 转换到由第二RNC B 2¾控制的区域中的相同内容流的点对点(PTP)传输。 During the "repositioning", the user equipment (UE) 10-point (PTP) from a content region controlled by the first RNC AlM the transmission stream, to convert the same content area controlled by a second RNC B 2¾ stream point to point (PTP) transmission. 重传(re-Tx) 可用于补偿任何丢失的MBMS净荷块。 Retransmission (re-Tx) may be used to compensate for any loss of MBMS payload blocks. 可类似于版本' 99软越区切换或硬越区切换,来执行小区间的从点对点(PTP)到点对点(PTP)的直接转换。 Version may be similar to '99 soft handoff or hard handoff, to perform a direct conversion from point to point (PTP) to point (PTP) between the cells. 即使没有两个RNC A、B之间的协调, 目标RNC A IM也应该能算出由UElO接收的最近的整个外部块。 Even if there is no coordination between the two RNC A, B, the target RNC A IM should be able to block the entire exterior of the calculated latest received by UElO. 这种估计可基于在Iu接口25上由RNCM接收的MBMS内容的时刻。 This estimate may be based on the time on the Iu interface MBMS content 25 received by the RNCM. 当使用PTP传输时,RNC 24能补偿初始延迟, 并且即使没有要求无损失的SRNS重新定位,也不会丢失MBMS的部分内容。 When using the PTP transmission, RNC 24 can compensate for the initial delay, even if not required lossless SRNS relocation is not lost part of MBMS.

[0240] 本领域的技术人员可理解的是,虽然为了便于理解可顺序地画出流程图,但是在实际实现方案中可并行地执行某些步骤。 [0240] Those skilled in the art will appreciate that although for ease of understanding may be sequentially drawn flowchart, but some of the steps may be performed in parallel in an actual implementations. 而且,除非明确显示,否则可在不脱离本发明范围的情况下,互换方法步骤。 Further, unless expressly indicated otherwise, it may be made without departing from the scope of the invention, the method steps interchanged.

[0241] 本领域专业技术人员可以理解,可以使用很多不同的工艺和技术中的任意一种来表示信息和信号。 [0241] The present skilled in the art can be appreciated, using any of a number of different technologies and techniques and to represent the information signal. 例如,上述说明中提到过的数据、指令、命令、信息、信号、比特、符号、及码片都可以表示为电压、电流、电磁波、磁场或磁性粒子、光场或光粒子、或以上的结合。 For example, reference throughout the above description of the data, instructions, commands, information, signals, bits, symbols, and chips may be represented by voltages, currents, electromagnetic waves, magnetic fields or particles, optical fields or particles, or more combined.

[0242] 专业技术人员还可以进一步意识到,结合本文中所公开的实施例描述的示例的逻辑块、模块、电路、及算法步骤能够以电子硬件、计算机软件、或二者的结合被执行。 [0242] professionals may be further appreciated, incorporated herein disclosed logical blocks, modules, circuits, and algorithm steps described exemplary embodiments can be performed by electronic hardware, computer software, or combinations of both. 为了清楚地说明硬件和软件的可互换性,在上述说明中已经按照功能一般性地描述了多个示例性组件、程序块、模块、电路、及步骤。 To clearly illustrate this interchangeability of hardware and software, in accordance with the foregoing has generally described the plurality of functions illustrative components, blocks, modules, circuits, and steps. 这种功能究竟可以软件还是硬件方式来实现取决于整个系统的特定的应用和设计约束条件。 Whether such functionality may be implemented as hardware or software depends upon the particular application and design constraints imposed on the overall system. 专业技术人员可以对每个特定的应用来使用不同方法来实现所描述的功能,但是这种实现不应被认为超出了本发明的范围。 Professional technical staff may use different methods for each specific application to implement the described functionality, but such implementation should not be considered outside the scope of the present invention.

[0243] 结合本文中所公开的实施例描述的多种示例的逻辑块、模块、电路可以用通用处理器、数字信号处理器(DSP)、专用集成电路(ASIC)、现场可编程门阵列(FPGA)或其它可编程逻辑设备、分立门或晶体管逻辑、分立硬件部件、或设计为执行本文所述功能的以上的任意组合来实现或执行。 [0243] incorporated herein disclosed various illustrative logical blocks described embodiments, modules, circuits may be a general purpose processor, a digital signal processor (DSP), application specific integrated circuit (ASIC), field programmable gate arrays ( FPGA) or other programmable logic device, discrete gate or transistor logic, discrete hardware components, or designed to perform the functions described herein in any combination thereof designed to perform. 通用处理器可以是微处理器,但是可替换地,处理器也可以是任何常规的处理器、控制器、微控制器、或状态机。 A general purpose processor may be a microprocessor, but in the alternative, the processor may be any conventional processor, controller, microcontroller, or state machine. 处理器也可以被实现为计算机设备的组合,例如,DSP和微处理器的组合、多个微处理器的组合、一个或多个微处理器与一个DSP核心的组合、或任意其它此类配置的组合。 A processor may also be implemented as a combination of computing devices, e.g., a combination of a DSP and a microprocessor, a plurality of microprocessors, one or more microprocessors in conjunction with a DSP core, or any other such configuration The combination.

[0244] 结合本文中所公开的实施例描述的方法或算法的各步骤可以直接用硬件、处理器执行的软件模块、或二者的结合来实施。 The steps of [0244] a method or algorithm described in the embodiments disclosed herein may be implemented in hardware, or combinations of both, a software module executed by a processor implemented directly. 软件模块可置于RAM存储器、闪存、ROM存储器、 EPROM存储器、EEPROM存储器、寄存器、硬盘、可移动硬盘、CD-ROM、或技术领域内所公知的任意其它形式的存储介质。 A software module may reside in RAM memory, flash memory, ROM memory, EPROM memory, EEPROM memory, registers, hard disk, a removable disk, CD-ROM, or well-known in the technical field of any other form of storage medium. 示例的存储介质可连接到处理器,所以处理器可以从存储介质读取信息并向存储介质写入信息。 An exemplary storage medium may be coupled to the processor, the processor can read information from a storage medium to write information to the storage medium. 可替换地,存储介质可以被集成在处理器中。 Alternatively, the storage medium may be integral to the processor. 处理器和存储介质可以置于ASIC中。 Processor and the storage medium may reside in an ASIC. ASIC可以置于用户端中。 The ASIC may reside in a user terminal. 可替换地,处理器和存储介质可以作为分离的部件置于用户端内。 Alternatively, the processor and the storage medium may be placed within the client as a separate member.

[0245] 对公开的实施例的上述说明使本领域专业技术人员能够实现或者使用本发明。 [0245] The above description of the disclosed embodiments enables those skilled in the art to make or use the present invention. 对这些实施例的多种修改对本领域的专业技术人员来说将是显而易见的,本文中所定义的一般原理可以在其它实施例中实现而不会脱离本发明的精神或范围。 Various modifications to these professionals skilled in the art of the present embodiments will be apparent, and the generic principles defined herein may be implemented without departing from the spirit or scope of the invention in other embodiments. 例如,尽管描述指明, 无线接入网20可通过使用通用陆地无线接入网(UTRAN)空中接口来实现,但是可选地,在GSM/GPRS系统中,接入网20可以是GSM/EDGE无线接入网(GERAN),或在系统间的情况下它可包括UTRAN空中接口的小区和GSM/EDGE空中接口的小区。 For example, although the description indicates, the radio access network 20 may be implemented using a universal terrestrial radio access network (UTRAN) air interface, but alternatively, in the GSM / GPRS system, access network 20 may be a GSM / EDGE radio access network (GERAN), or in the case of a system which may comprise between a cell UTRAN air interface and GSM / EDGE air interface cell. 因此,本发明将不会被限制于本文所示的这些实施例,而是要符合本文所公开的原理和新颖特点一致的最宽的范围。 Accordingly, the present invention will not be limited to the embodiments shown herein but is to be consistent with the principles disclosed herein, and novel features of the broadest range.

[0246] 本发明文件的部分公开包含受版权保护的材料。 [0246] The present invention disclosure document portion comprising a material subject to copyright protection. 当它出现在专利商标局的专利文件或记录中时,版权所有人不反对任何人对专利文件或专利公开的传真复制,否则不论何种情况都将保留所有版权。 When it appears in the Patent and Trademark Office patent file or records, the copyright owner has no objection to anyone of the patent document or the patent disclosure fax copy, otherwise no matter what the situation will be All Rights Reserved.

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Claims (16)

1. 一种通过信道传递信息的方法,包括:在无线链路控制层上方使第一类型信息的各行成帧,以生成第二类型信息的各行,其中所述第一类型信息包括通过无线承载的第一格式的净荷数据,其中所述第二类型信息包括第二格式的净荷数据;在无线链路控制层上方对所述第二类型信息的各行进行编码,以生成包括奇偶块的冗余信息的各行;将所述冗余信息附加到所述第二类型信息之后,以生成包括所述奇偶块和第二格式的所述净荷数据的各行的第一外部代码块;将开销信息添加到所述第一外部代码块的每行中,其中所述开销信息包括序号;和将所述第一外部代码块传送到无线链路控制层。 1. A method of transmitting information over a channel, comprising: a radio link control layer above the respective rows of the first type of framing information, to generate a second type of information of each line, wherein said first type of information comprises a radio bearer by payload data of the first format, wherein the second type information includes payload data in a second format; encoding each row of said second type of information over a radio link control layer, to generate a parity block including each row redundancy information; after the redundant information is appended to the second type of information, a first outer row of each code block to generate said payload comprises the parity block and the second data format; overhead information is added to each row of the first external code block, wherein the overhead information comprises a sequence number; and transmitting said first outer code block to the radio link control layer.
2.如权利要求1所述的方法,还包括:接收来自第一源的所述第一外部代码块。 2. The method according to claim 1, further comprising: receiving a first block of the external code from the first source.
3.如权利要求2所述的方法,还包括:当无线通信装置经历转换时,接收来自第二源的包括与所述第二类型信息的各行相同的第二分组的第二外部代码块,其中所述第二分组的各行包括序号,并且所述转换是以下转换中的任一个:点对点传输和点对多点传输之间的转换,点对点传输和另一个点对点传输之间的转换,点对多点传输和另一个点对多点传输之间的转换,小区内转换和小区间转换;和使用所述序号来重新对准第一外部代码块和第二外部代码块。 3. The method according to claim 2, further comprising: when the wireless communication device undergoes a transition to receive a second outer block rows each includes the same information and the second type of the second packet from a second source, wherein each of said second row comprises a packet sequence number, and the conversion is a conversion of any of the following: the transition between transmission and point-multipoint transmission, the conversion between the transmission point and the another point transmission, point transition between the multi-point transmission and another multipoint transmission, intra-cell and inter-cell conversion conversion; and using the first sequence number to re-align the outer code blocks and a second outer code block.
4.如权利要求1所述的方法,其中所述第二类型信息还包括填充信息。 4. The method according to claim 1, wherein said second type of information further comprises padding information.
5.如权利要求1所述的方法,其中在编码前附加内部块编号,在编码后附加外部块编号,允许所述无线链路控制层在无线通信装置经历转换时改变模式,其中所述转换是以下转换中的任一个:点对点传输和点对多点传输之间的转换,点对点传输和另一个点对点传输之间的转换,点对多点传输和另一个点对多点传输之间的转换,小区内转换和小区间转换。 5. The method of claim 1, wherein the additional internal block number before coding, additional external block number after encoding, allowing the radio link control layer changes mode when the wireless communication device undergoes a transition in claim, wherein said conversion a conversion of any of the following: the transition between switching between the transmission and switching between the point-to-multipoint transmission, the transmission point and another point to point transmission, point-to-multipoint transmission and the other transmission , intra-cell inter-cell conversion and conversion.
6.如权利要求1所述的方法,其中所述编码包括外部编码,并且独立于所述无线链路控制层被执行。 6. The method according to claim 1, wherein the outer encoding comprises encoding, and is independent of the radio link control layer is performed.
7.如权利要求1所述的方法,其中所述信道是单向的公共逻辑信道。 7. The method according to claim 1, wherein said common channel is a unidirectional logical channel.
8.如权利要求7所述的方法,其中所述信道是单向的下行链路信道。 8. The method according to claim 7, wherein said channel is a unidirectional downlink channel.
9.如权利要求8所述的方法,其中所述公共逻辑信道传送被广播给一个或更多终端的fn息ο fn interest 9. The method according to claim 8, wherein the common logical channel transmission is broadcast to the one or more terminal ο
10. 一种将第一外部代码块和第二外部代码块传送给无线通信装置的方法,包括:传送所述第一外部代码块,其中所述第一外部代码块具有在无线链路控制层上方生成的至少一个数据行和至少一个冗余行,并且其中每行具有包括序号的开销信息,所述第二外部代码块仅由数据行组成,其中第二外部代码块的各行具有包括序号的开销信息;和当所述无线通信装置经历转换时,使用所述序号来将所述第一外部代码块与所述第二外部代码块对准,其中所述转换是以下转换中的任一个:点对点传输和点对多点传输之间的转换,点对点传输和另一个点对点传输之间的转换,点对多点传输和另一个点对多点传输之间的转换,小区内转换和小区间转换。 10. A first outer code blocks and a second block external to the wireless communication device, comprising: transmitting said first outer code block, wherein said first outer code block having a radio link control layer generated above the at least one data line and at least one redundant row, and wherein each row includes overhead information having a sequence number, said second outer code blocks only by the data rows, wherein each row having a second outer block including the serial number of overhead information; and when the wireless communication device undergoes a transition, the use of sequence number to the first external code block and the second block aligned with the external code, wherein said conversion is converted to any one of the following: the transition between the transition between the transmission point and multipoint transmission, switching between the transmission point and the other transfer point, multipoint-to-multipoint transmission and the other transmission, intra-cell and inter-cell conversion conversion .
11. 一种用于通信系统的通过信道传递信息的方法,包括: 提供无线链路控制层;和提供置于所述无线链路控制层上方的前向纠错层,其中所述前向纠错层在第一类型信息到达所述无线链路控制层之前,通过无线承载接收所述第一类型信息;其中所述前向纠错层在所述第一类型信息到达所述无线链路控制层之前,将所述第一类型信息成帧为相等尺寸的帧,以生成第二类型信息;其中所述前向纠错层使用所述第二类型信息来生成冗余信息的各行,其中所述冗余信息被附加到所述第二类型信息之后以生成外部代码块;其中所述前向纠错层在向所述无线链路控制层传送之前,将序号添加到所述外部代码块的每行。 11. A method for a communication system via a channel transfer information, comprising: providing a radio link control layer; and providing a forward error correction layer disposed over the front of the radio link control layer, wherein said forward error split prior to the first type of information reaching the radio link control layer, a first received by the radio bearer type information; wherein the forward error correcting the radio link control layer to the first type information to prior layer, the first type of information frame framing of equal size to generate a second type of information; wherein the front of each row is generated using the redundant error correction information to the information layer of the second type, wherein after the redundant information is added to said second type of information to generate the external block; wherein said forward error correction layer prior to transmission to the radio link control layer, a sequence number is added to the outer block each line.
12.如权利要求11所述的方法,其中从第一源接收所述外部代码块,所述外部代码块通过公共逻辑信道被传送。 12. The method of claim 11, wherein the external receiving from a first source block, the outer code blocks is transmitted through a common logical channel.
13.如权利要求12所述的方法,其中所述序号允许外部代码块在转换期间,和来自第二源的外部代码块重新排列,其中所述转换是以下转换中的任一个:点对点传输和点对多点传输之间的转换,点对点传输和另一个点对点传输之间的转换,点对多点传输和另一个点对多点传输之间的转换,小区内转换和小区间转换。 13. The method of claim 12, wherein said external serial number allows the code block during the transition, and the code blocks from a second external source rearrangement, wherein said conversion is the conversion of either one of the following: point to point transmission and conversion between multipoint transmission, the conversion between the transmission point and the another point transmission, switching between transmission and multipoint-to-multipoint transmission of another, inter-cell and intra-cell conversion conversion.
14. 一种在包括无线链路控制层的系统中,在通过公共信道传送信息之前对所述信息进行编码的方法,包括:接收来自无线承载的所述信息;在将所述信息传给无线链路控制层之前,对所述信息进行外部块编码; 其中所述信息包括内容,并且其中外部块编码包括: 将所述内容组织成数据块; 编码所述数据块,以生成奇偶块;将奇偶块附加到数据块之后,以生成编码器分组,其中所述奇偶块被配置成,用来重新构造在传输期间丢失的任何数据块;和将开销信息添加到所述编码器分组中的每块中,所述编码器分组通过包括内部块编号和外部块编号的序号,来识别每块,其中所述开销信息包括序号。 14. A system comprising a radio link control layer, a method of coding information before transmission through the common channel to the information, comprising: receiving information from the radio bearer; the information to the radio before the link control layer, the outer block coding information; wherein the information comprises a content, and wherein the external block coding comprising: organize the content into data blocks; encoding the data block to generate a parity block; and after the parity block to a data block, to generate the encoder packets, wherein the parity block is configured, the data block to reconstruct any lost during transmission; and adding the overhead information to each of the encoder packet block, said encoder comprising an internal packet by the sequence number and the block number of the outer block number to identify each block, wherein the overhead information comprises a sequence number.
15.如权利要求14所述的方法,其中在单个帧中传送每块。 15. The method as claimed in claim 14, wherein each transmitting in a single frame.
16.如权利要求14所述的方法,其中在多个帧中传送每块。 16. The method as claimed in claim 14, wherein transmitting the plurality of frames each.
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